Each marker on the ring is one counted review, coloured by its verdict.

Seiko

Prospex SPB143

SPB14340.5mmautomatic$1,200 list priceAnnounced June 2020

A 40.5mm, 200m steel dive watch that modernizes Seiko's first professional diver, the 1965 62MAS, with a grey sunburst dial, sapphire crystal and the 70-hour 6R35 automatic. It became one of the most-discussed ~$1,000 divers of the early 2020s.

Seiko product page

Creator Consensus

Very positive

8 reviews: 8 positive, 0 mixed, 0 negative. 8 of 8 recommend it.

Every reviewer recommends the SPB143 and rates its dial, with most singling out the bright lume and the charcoal sunburst finish. Most also praise the comfortable fit across wrist sizes, the precise bezel action, the compact case and the fair pricing. Several have reservations about finishing, and a couple mention inconsistent bezel alignment.

Where they differ. The bracelet divides opinion: most call it a clear step up for Seiko, while some find the clasp clunky, the diver's extension awkward and the push-pin links cheap. Most consider it fairly priced, though a couple feel it is harder to justify against rivals.

Most praised

Comfortable and suits a wide range of wrists6 of 8
- Monochrome Describes the watch as compact, short on the wrist and well balanced.compact, short on the wrist and well-balancedRead it in context
- Fratello Believes smaller wrists will appreciate the watch's size.For smaller wrists — which will love the size of the watchRead it in context
- Worn & Wound Considers it comfortable and well sized for nearly any wrist.Both watches wear comfortably, look great, and are sized wellRead it in context
- One Man Reviews Finds the dimensions very comfortable on the reviewer's own wrist.the watch dimensions make them very comfortable on my 70 centimeter wristWatch from 1:56
- One Man Reviews Appreciates a more moderate size than typical Seiko divers and expects it to suit most wrists.i think it would be comfortable on most wristsWatch from 7:18
- Just One More Watch Finds it wears very nicely on a seven-inch wrist.this one wears very nicely indeedWatch from 9:52
- Teddy Baldassarre Says it wears fantastically on the wrist.It wears fantastic on the wrist.Watch from 11:05
Precise, solid bezel action6 of 8
- Monochrome Finds the unidirectional bezel smooth and pleasant to operate.smooth and pleasant to manipulateRead it in context
- Fratello Bezel feels solidly mounted, turns with the right force and clicks precisely.turns precisely with the right force, and stops perfectly goal-oriented at one of its 120 clicksRead it in context
- One Man Reviews Likes how the bezel clicks and performs.i like how the bezel performs just take a listenWatch from 4:07
- Time & Crown Enjoys the bezel action with no play and soft, secure clicks.i really like the bezel action no play really nice soft clicksWatch from 2:37
- Teddy Baldassarre Bezel action is a step up from entry Prospex models.has a step up in its action compared to the entry pointWatch from 3:21
- Just One More Watch Praises the firm 120-click bezel with no back play.the bezel action absolutely outstanding 120 click unidirectional rotating no back playWatch from 5:59
Bright, long-lasting Lumibrite lume6 of 8
- Monochrome Calls the Lumibrite lume ultra-efficient and generously applied.generously filled with Seiko’s proprietary luminescent material, the ultra-efficient LumibriteRead it in context
- Worn & Wound Says the lume is bright and long-lasting, far better than the Doxa's.bright, lasts a long time, and glows a beautiful teal-greenRead it in context
- One Man Reviews Rates the lume on the hands and indices as great.the loom is greatWatch from 3:38
- Time & Crown Praises the LumiBrite lume as excellent and still going strong after two years.the loom is still great of course this loom will never dieWatch from 4:04
- Teddy Baldassarre Rates the lume as excellent.The loom is excellent.Watch from 11:05
- Just One More Watch Is satisfied with the Lumibrite lume performance.no complaints about the loom here eitherWatch from 9:52
Fairly priced for what it offers6 of 8
- Monochrome Calls the watches nicely executed and fairly priced.nicely executed, fairly priced and well-proportionedRead it in context
- Monochrome Describes the models as relatively accessible watches.relatively accessible watches, well executedRead it in context
- Fratello Views the specs as making these strong choices at around €1,050–1,350.these models are strong choicesRead it in context
- Fratello Disagrees that Seikos in this price range are expensive, citing the bezel quality.It’s sometimes heard that Seiko watches in this plus €1,000-range are expensive. I don’t think so.Read it in context
- One Man Reviews Thinks it is priced fairly for the specifications.i think they priced pretty well considering the specsWatch from 6:20
- One Man Reviews Calls it a very good model for the money.it's a very good model for the money they askingWatch from 7:46
- Just One More Watch Doesn't consider the roughly $1,000 price overpriced.i don't think a grand is massively overpriced in the scheme of thingsWatch from 13:15
- Beyond the Dial Delivers the 62MAS feel at a relatively reasonable price.just enough of that classic 62MAS vibe to feel like that slot is filled at a relatively reasonable price pointRead it in context
- Teddy Baldassarre Sees it as the sweet spot for 62MAS-style ownership.this is the perfect sweet spot for getting a taste of the 62 MossWatch from 11:33
Compact 40.5mm case is well judged5 of 8
- Monochrome Notes the 40.5mm case and sub-48mm lug-to-lug are notably compact given Seiko's tendency to go big.knowing Seiko’s ability to go big, this is worth mentioning hereRead it in context
- Fratello Finds 40.5mm a more suitable size than the larger 42.6mm predecessor.have been shrunken to a — in my opinion — more suitable 40.5 mmRead it in context
- Teddy Baldassarre Considers the 40.5mm diameter very wrist-friendly.It checks in at a very wristfriendly 40 1/2 mm in diameterWatch from 2:23
- Teddy Baldassarre Sees the dimensions as trim for a modern dive watch.these dimensions are rather trim within the context of modern dive watchesWatch from 2:23
- Just One More Watch Finds the 40.5mm case very well sized.it's also very well sized i think 40 and a half milWatch from 4:02
- Worn & Wound Finds the 47.8mm lug-to-lug ideal on a 6.75-inch wrist.lug-to-lug length is damn near perfectRead it in context
Clean mix of brushed and polished surfaces5 of 8
- Monochrome Praises the mix of brushed surfaces and polished bevels on the case.The case is finely finishedRead it in context
- Fratello Describes the case as finely shaped, with brushed surfaces and polished chamfers.The finely shaped and sized case received a circular brushed top-side finish.Read it in context
- Just One More Watch Praises the mix of brushed and polished case surfaces.an undercut there in high polish that is going to wear beautifullyWatch from 5:30
- Beyond the Dial Case edges are not razor-sharp but clean with decent contrast.but they are clean and create decent contrastRead it in context
- Teddy Baldassarre Describes the case finishing as crisp and clean.the case finishing, which is crisp and cleanWatch from 3:21

Show 19 more

Charcoal sunburst dial is a highlight5 of 8
- Beyond the Dial Finds the charcoal dial deep and consistent in colour under varied lighting.dial is reliably charcoal in color, regardless of the ambient lightingRead it in context
- Worn & Wound Finds the charcoal sunburst dial stunning as it plays with the light.charcoal sunburst dial is simply stunningRead it in context
- Time & Crown Considers the grey dial superbly executed and a key highlight of the watch.i think this gray is just so well executedWatch from 3:35
- Teddy Baldassarre Likes the charcoal grey as a tasteful alternative to typical black.The soft charcoal gray color offers a tasteful alternative to the blackWatch from 5:46
- Just One More Watch Loves the grey sunburst dial and how it plays with light.i love that gray sunburst dialWatch from 3:05
Bracelet is a clear step up for Seiko5 of 8
- Fratello Finds the bracelet solid, nicely finished, adjustable, with a novel dive extension.The bracelet feels solid, is nicely finished, and has adequate adjustment possibilitiesRead it in context
- Fratello Has seen better bracelets, but not at this price level.I have seen better bracelets but not on watches in this price leagueRead it in context
- One Man Reviews Finds the bracelet very comfortable and well built, unusual for Seiko.i love the bracelet on this watch it is very comfortable and very well builtWatch from 3:38
- Time & Crown Sees the bracelet as a major improvement over older Seiko bracelets.it was a big upgrade from what seiko used to doWatch from 3:35
- Time & Crown Finds the bracelet flexible, nicely finished and comfortable.which is also very comfortableWatch from 8:54
- Teddy Baldassarre Considers bracelet execution better than on entry-level Seikos.the bracelet's overall execution is a cut aboveWatch from 5:17
- Just One More Watch Considers it possibly the best-made Seiko bracelet seen so far.it may well be the best made bracelet that i've seen on a seiko so farWatch from 11:48
- Time & Crown Bracelet and clasp have held up very well over two years.the bracelet and the clasp holds up really really greatlyWatch from 4:04
Matte bezel insert looks and feels premium4 of 8
- Monochrome Says the matte brushed bezel insert adds to the perceived quality.adds to the perceived quality of the watchRead it in context
- Fratello Bezel insert is matte, hard-feeling and good-looking with engraved numerals, unlike cheaper siblings.looks very good with its engraved numerals, incomparable to one of its cheaper brothersRead it in context
- Beyond the Dial Finds the flat black bezel complements the materials and lets the dial shine.It looks great with the rest of the materials, and allows that dial to shimmer.Read it in context
- One Man Reviews Finds the bezel scratch-free and of very good quality.the quality of the bezel is very goodWatch from 4:07
Hard coating keeps the case scratch-free4 of 8
- Worn & Wound Values the DiaShield coating for keeping the watch looking new.resists scratches and will result in a watch that looks newer for longerRead it in context
- One Man Reviews Notes the hard coating has kept the case largely scratch-free after a year.you don't see many scratches on the caseWatch from 2:24
- Time & Crown Scratch-resistant coating has kept the watch free of serious scratches.i have no serious scratches so the dye shield coating really does its jobWatch from 4:34
- Teddy Baldassarre Views the super-hard coating as a nice bonus, though less than ceramic.still it's a nice bonus more than doubling the hardnessWatch from 4:19
Faithful, modernised 62MAS reinterpretation4 of 8
- Teddy Baldassarre Considers it among the most faithful 62MAS renderings available.one of the most faithful renderings of the 62 Moss currently availableWatch from 1:25
- Just One More Watch Faithful to the 62MAS without being a pastiche.relatively faithful to the original without being a pasticheWatch from 13:15
- Just One More Watch Feels it modernises the 62MAS look.i think it manages to modernize that whole 62 mass lookWatch from 10:51
- Monochrome Appreciates the combination of 62MAS-inspired elements with modernised touches.a nice combination of 62MAS-based elements with modernized featuresRead it in context
- Teddy Baldassarre Feels it is more authentic than newer Seiko divers.the 143 just feels more authenticWatch from 10:36
- One Man Reviews Sees the 62MAS heritage and story as a strong addition to the package.great story and the heritage behind the model is a very good additionWatch from 4:48
Handsome, well-executed design4 of 8
- Monochrome Describes the watches as well executed with a cool design.well executed with a cool designRead it in context
- Fratello Considers the watch highly attractive and says it evokes genuine feeling beyond technical merit.plus that it is an immensely attractive watch which came a long wayRead it in context
- Just One More Watch Considers the watch a handsome piece overall.overall it is a handsome beastWatch from 4:02
- Teddy Baldassarre Enjoys how the watch looks when worn.I love the way it looks on wrist.Watch from 10:36
Works well on almost any strap4 of 8
- Time & Crown Calls versatility the top strength, working with almost any strap.the best thing is definitely the versatilityWatch from 7:26
- Teddy Baldassarre Says the watch looks great on many different straps.the SPB43 looks fantastic on a variety of different strapsWatch from 4:19
- Just One More Watch Expects it to suit many straps and be easy to swap.this thing is going to be an absolute strap monsterWatch from 5:30
- Worn & Wound Thinks the watch excels on a nylon NATO strap.Both watches excel on a nylon strap.Read it in context
Curved profile and lugs hug the wrist3 of 8
- Worn & Wound Appreciates how the case curves in profile to hug the wrist.the case curves to hug the wristRead it in context
- Just One More Watch Compact lug-to-lug and downturned lugs mean thickness isn't noticeable.the 13.8 isn't an issue at allWatch from 11:20
- Fratello Notes the soft polished underside edges aid comfort.soft polished edges, on the underside of the watch, for comfortable wearRead it in context
Applied indices are finely executed3 of 8
- Fratello Feels the applied luminous indices with polished frames give a high-end look.The applied or raised luminous index markers give off a high-end character.Read it in context
- Worn & Wound Considers the applied indices perfectly executed.The applied indices are perfectly executed as well.Read it in context
- Time & Crown Likes the clean, classic printing and nicely applied hour markers.they kept it kind of clean and very classic and just beautifulWatch from 8:24
Captures the character of the 62MAS3 of 8
- Beyond the Dial Rectangular markers and hands capture the 62MAS character.rectangular markers and hands that are key in nailing that 62MAS vibeRead it in context
- Beyond the Dial At a glance it reads like a 62MAS, which delights the reviewer.At a glance the SPB143 reads like a 62MAS to a degree that puts a smile on my face.Read it in context
- One Man Reviews Finds the design great, with a vintage vibe true to the 62MAS inspiration.the design is great and has certain vintage vibe to itWatch from 1:56
- Teddy Baldassarre Feels the case profile captures the classic skin-diver aesthetic.the SPB43 nails the traditional skin diver vibe with its case profileWatch from 2:23
Standout among Seiko's dive watches3 of 8
- Worn & Wound Sees it as the ideal Seiko diver in both aesthetic and technology.the platonic ideal of what a Seiko dive watch should beRead it in context
- Teddy Baldassarre Considers it possibly their favourite Seiko dive watch overall.It might be my favorite overall Seikko dive watch out thereWatch from 12:02
- Beyond the Dial Plans to sell all other Seiko divers and keep only this one.flip all of my other Seiko divers and just rock the SPB143Read it in context
Drilled lugs make strap changes easy3 of 8
- One Man Reviews Likes the drilled lugs for easy strap changes.i love that the watch has drilled lugsWatch from 4:07
- Time & Crown Drilled lug holes make changing straps simple.you have drill lock holes here so it's very easyWatch from 4:34
- Time & Crown Flat case ends and 20mm lugs make strap swaps easy.that actually makes it very easy to put other strapsWatch from 2:09
- Teddy Baldassarre Appreciates drilled lugs for strap swapping.a detail always appreciated by professional divers and frequent strap swappers alikeWatch from 3:49
Coin-edge bezel is a standout detail2 of 8
- Worn & Wound Finds the brushed bezel bold yet refined thanks to its polished coin edge.remains refined thanks to the polished coin edgeRead it in context
- Just One More Watch Calls the coin-edge bezel a standout feature.coin edge bezel bezel is an absolute standoutWatch from 5:30
Half-polished, half-brushed hands add refinement2 of 8
- Worn & Wound Likes the half-polished, half-brushed hands for adding shine without hurting legibility.gives them a nice pop of bling while retaining legibilityRead it in context
- Just One More Watch Finds the half-polished, half-brushed hands add something extra.it just adds a little extra something to the dialWatch from 8:54
Accurate timekeeping in testing2 of 8
- Time & Crown Measured accuracy of about +5 seconds per day impresses the reviewer for this calibre.approximately 5 seconds plus per day which is amazing for this movementWatch from 1:12
- Just One More Watch This example ran close to zero on the timegrapher.running pretty close to zero with a healthy amplitude and minimal beat errorWatch from 6:57
Proven, dependable workhorse calibre2 of 8
- Time & Crown Describes it as a workhorse that does its job very well, though not beautiful or high-end.it's a workhorse it's a tractor and it does its job very wellWatch from 1:42
- Teddy Baldassarre Considers the 6R35 perfectly fine and highly proven.the movement is absolutely fine in practice and one of the most provenWatch from 7:42
Justifies the premium over cheaper Seiko divers2 of 8
- Beyond the Dial Believes the extra cost for finishing and design is well worth it.but I believe the cost is well worth itRead it in context
- Time & Crown Offers much more quality than cheaper Seiko divers like the Turtle.but you get so much more qualityWatch from 5:02
- Beyond the Dial Says it far surpasses the cheaper Seiko divers owned previously.it does blow away the Sumos, Samurais, Turtles, SKXs, and SPBsRead it in context
Capable everyday tool watch1 of 8
- Worn & Wound Feels it is a solid tool watch backed by strong tech and specs.really feels like a solid tool watch, with the tech and specs to back it upRead it in context
- Worn & Wound Calls it a perfect tool watch for almost any activity.the Seiko is the perfect tool watch for nearly any activityRead it in context
- Worn & Wound Feels it looks and wears better than most tool watches.a tool that happens to look and wear better than most tools out thereRead it in context
Useful 70-hour power reserve1 of 8
- Worn & Wound Considers the 70-hour power reserve ideal for people who rotate watches.ideal for the chronic watch swapperRead it in context
- Worn & Wound Welcomes the more premium movement with its longer reserve.runs for an impressive 70 hours between windingsRead it in context

Most criticised

Bezel alignment is inconsistent2 of 8
- One Man Reviews The reviewer's example has bezel misalignment, a common issue.the bezel misalignment is another common safety issue i have it on this watchWatch from 5:51
- Time & Crown Own example is slightly misaligned; sees alignment as a persistent Seiko problem requiring in-store inspection.that is a huge problem still a huge problem for seikoWatch from 6:29
Prospex logo clutters the dial2 of 8
- Time & Crown Could do without the Prospex logo on the dial.i could probably do without the logoWatch from 8:24
- Teddy Baldassarre Thinks omitting the Prospex X logo would look more classic, though not a dealbreaker.the dial might look a bit more classic with the omission of XWatch from 6:44
Unsigned crown feels like corner-cutting2 of 8
- Fratello Was surprised the crown carries no signature or embossing.The thing which wondered me slightly was that it isn’t signed.Read it in context
- Just One More Watch Dislikes the unsigned crown at this price.unsigned crown as well again come on seiko show us a bit of loveWatch from 5:59
- Just One More Watch Sees the unsigned crown as evidence of corner-cutting.it just shows that they're still cutting corners even at this priceWatch from 11:48
Oversized clasp feels clunky2 of 8
- Worn & Wound Calls the three-link bracelet hefty and clunky, with an unwieldy clasp.hefty and clunky with a rather unwieldy clasp on the bottomRead it in context
- Worn & Wound Says the oversized clasp reduces the bracelet's comfort and flexibility.It interferes with the comfort and flexibility of the bracelet quite a bit.Read it in context
- Teddy Baldassarre Finds the clasp oversized, detracting from the vintage feel.which does detract from the vintage feelWatch from 5:17
Diver's extension is awkward to use2 of 8
- Beyond the Dial Finds the diver's extension confusing, though the clasp is solid and comfortable.expansion mechanism is puzzling and hard to useRead it in context
- Teddy Baldassarre Finds the diver's extension placement a bit clunky.is a little bit clunkyWatch from 9:39
Push-pin links instead of screws2 of 8
- Fratello Notes the links use push pins rather than screws.The links are not screw-fixed though. Pins have to be pushed out.Read it in context
- Beyond the Dial Would prefer screwed links over pin-and-collar, though accepts it at the price.love screws instead, but for $1200 you get what you pay forRead it in context

Show 6 more

Price is harder to justify against rivals2 of 8
- One Man Reviews Expects a better movement at this price point.in this price point i think which should have a better movementWatch from 6:20
- Time & Crown Considers price versus quality no longer adding up against the market.price versus quality isn't really adding upWatch from 6:00
Thicker than its specification warrants1 of 8
- Time & Crown Considers 13.4mm thickness excessive for 200m water resistance, blaming the protruding caseback.13.4 millimeters in thickness is just slightly too much for 200 metersWatch from 6:29
- Time & Crown Feels slightly too thick on the wrist for what it offers.on the wrist i just feel it's a little bit too thickWatch from 6:57
Screw-down crown is stiff to operate1 of 8
- One Man Reviews Dislikes the stiff screw-down crown, which improved only slightly over a year.the screw-down crown is pretty stiff and i don't like it eitherWatch from 5:51
- One Man Reviews Frequent time corrections are especially annoying with the stiff screw-down crown.it's very bad when you have to correct the time every few daysWatch from 5:16
Curvy bracelet clashes with angular case1 of 8
- Just One More Watch Feels the overall design doesn't work because the bracelet doesn't suit the head.i don't think it particularly works well as an overall designWatch from 14:13
- Just One More Watch Feels the curvy bracelet doesn't match the angular head.i just don't think the bracelet matches the head of the watchWatch from 14:13
Poor, inconsistent regulation of the 6R351 of 8
- One Man Reviews Considers the movement poorly regulated with very bad accuracy.the movement is not good it's not regulated and the accuracy is very badWatch from 4:48
- One Man Reviews Reports losing about a minute per 22 hours, outside the stated tolerance.i'm losing about a minute per 22 hours it's not even within their stated accuracyWatch from 5:16
- One Man Reviews Has seen inconsistent performance across three Seikos with this movement, making it a lottery.they all perform differently so you may get luckyWatch from 6:48
Dust found under the dial1 of 8
- Just One More Watch Found dust under the dial, unacceptable for a Japanese-made watch at this price.a little bit of dust under the dial for a japanese made watchWatch from 11:48

Open a point to see who said it and jump to that moment in their review.

By aspect

PositiveMixedNegative

How reviewers judged each aspect; one square per reviewer who discussed it
Dial		Praised
Case & proportions		Praised
Finishing & build		Mostly liked
Design		Praised
Wearability		Praised
Bracelet & strap		Mixed
Functionality		Praised
Value		Praised
Movement		Mostly liked
Versatility		Praised
Originality		Praised

Was this consensus useful?

The reviews

8 counted, 2 more for context

Remontoir summarises; the reviewers did the work. Watch and read the originals for the full picture.

Teddy Baldassarre

Is This The Purest Seiko Dive Watch? The Seiko SPB143

Video, 13 minHands-on reviewSep 2025

Very positiveRecommends

Calls the SPB143 one of their favourite Seiko divers: a faithful, well-finished 62MAS homage that wears excellently. Notes an elevated price versus entry Prospex, newer 6R55 rivals and a slightly odd clasp, but sees it as a sweet spot at an unchanged price.

Suits: Seiko buyers wanting refinement and 62MAS heritage without Marinemaster pricing

Disclosure: Retailer stock

What they said, point by point

Designpositive: Feels the case profile captures the classic skin-diver aesthetic. 2:23
Enjoys how the watch looks when worn. 10:36
Considers it possibly their favourite Seiko dive watch overall. 12:02
Case & proportionspositive: Considers the 40.5mm diameter very wrist-friendly. 2:23
Sees the dimensions as trim for a modern dive watch. 2:23
Finds the unsigned crown retro-looking with adequate grip. 2:52
Dialpositive: Likes the charcoal grey as a tasteful alternative to typical black. 5:46
Rates the lume as excellent. 11:05
Finds the date window legible and neatly sized. 6:15
Thinks omitting the Prospex X logo would look more classic, though not a dealbreaker. 6:44
Finishing & buildpositive: Describes the case finishing as crisp and clean. 3:21
Finds movement finishing unremarkable, though it is hidden anyway. 8:12
Bracelet & strapmixed: Considers bracelet execution better than on entry-level Seikos. 5:17
Finds the clasp oversized, detracting from the vintage feel. 5:17
Finds the diver's extension placement a bit clunky. 9:39
Says the watch looks great on many different straps. 4:19
Functionalitypositive: Bezel action is a step up from entry Prospex models. 3:21
Notes some minor bezel backplay. 3:21
Appreciates drilled lugs for strap swapping. 3:49
Views the super-hard coating as a nice bonus, though less than ceramic. 4:19
Movementpositive: Considers the 6R35 perfectly fine and highly proven. 7:42
Acknowledges the quoted accuracy spec leads some buyers to want more. 7:42
Wearabilitypositive: Says it wears fantastically on the wrist. 11:05
Feels solid and substantial when handled. 10:36
Originalitypositive: Considers it among the most faithful 62MAS renderings available. 1:25
Feels it is more authentic than newer Seiko divers. 10:36
Valuepositive: Acknowledges it is pricier than entry-level Prospex divers. 8:41
Says it is not for buyers seeking maximum value from Seiko. 10:08
Values that the price has held steady for five years. 11:33
Sees it as the sweet spot for 62MAS-style ownership. 11:33
Compared with: Seiko Prospex SPB453: Prefers the SPB143's grey dial and authenticity; SPB453 offers more power reserve and WR.
Tudor Black Bay 58: Suggests the SPB143 offers similar wearability to the BB58.

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One Man Reviews

A Year On The Wrist: Seiko Prospex SPB143J1 - 62MAS (1965 Dive style remake)

Video, 9 minOwner's reviewJul 2022

PositiveRecommends, with caveats

After a year of ownership, the reviewer loves the SPB143's design, comfort, build, bracelet and bezel. However, poor out-of-spec accuracy, a stiff crown and bezel misalignment cause real frustration. It is a solid, well-priced diver, but movement lottery is a key caveat.

Suits: Buyers wanting a comfortable, well-built vintage-style diver that suits most wrists

Disclosure: Reviewer owns it

What they said, point by point

Designpositive: Finds the design great, with a vintage vibe true to the 62MAS inspiration. 1:56
Wearabilitypositive: Finds the dimensions very comfortable on the reviewer's own wrist. 1:56
Appreciates a more moderate size than typical Seiko divers and expects it to suit most wrists. 7:18
Finishing & buildmixed: Considers the build quality great and robust enough for tough use. 1:56
Notes the hard coating has kept the case largely scratch-free after a year. 2:24
The reviewer's example has bezel misalignment, a common issue. 5:51
Dialpositive: Rates the lume on the hands and indices as great. 3:38
Bracelet & strappositive: Finds the bracelet very comfortable and well built, unusual for Seiko. 3:38
Likes the drilled lugs for easy strap changes. 4:07
Despite its strap-monster reputation, prefers it on the bracelet after trying several straps. 4:48
Case & proportionsmixed: Finds the bezel scratch-free and of very good quality. 4:07
Dislikes the stiff screw-down crown, which improved only slightly over a year. 5:51
Functionalitypositive: Likes how the bezel clicks and performs. 4:07
Movementnegative: Considers the movement poorly regulated with very bad accuracy. 4:48
Reports losing about a minute per 22 hours, outside the stated tolerance. 5:16
Frequent time corrections are especially annoying with the stiff screw-down crown. 5:16
Has seen inconsistent performance across three Seikos with this movement, making it a lottery. 6:48
Originalitypositive: Sees the 62MAS heritage and story as a strong addition to the package. 4:48
Valuemixed: Thinks it is priced fairly for the specifications. 6:20
Expects a better movement at this price point. 6:20
Calls it a very good model for the money. 7:46

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Time & Crown

Seiko Prospex SPB143 Two Year Follow-Up Review | Worth It?

Video, 10 minOwner's reviewJun 2022

PositiveRecommends, with caveats

After 22 months of ownership, the reviewer finds the SPB143 durable, accurate and very versatile, with a superb grey dial and much-improved bracelet. Alignment issues, excess thickness and weakening value against newer rivals are the main drawbacks.

Suits: Buyers wanting one definitive Seiko dive watch in their collection

Disclosure: Reviewer owns it

What they said, point by point

Movementpositive: Measured accuracy of about +5 seconds per day impresses the reviewer for this calibre. 1:12
Describes it as a workhorse that does its job very well, though not beautiful or high-end. 1:42
Dialpositive: Considers the grey dial superbly executed and a key highlight of the watch. 3:35
Praises the LumiBrite lume as excellent and still going strong after two years. 4:04
Likes the clean, classic printing and nicely applied hour markers. 8:24
Could do without the Prospex logo on the dial. 8:24
Functionalitypositive: Enjoys the bezel action with no play and soft, secure clicks. 2:37
Notes the bezel is a bit stiff and needs some force to turn. 2:37
Bracelet & strappositive: Sees the bracelet as a major improvement over older Seiko bracelets. 3:35
Clasp is improved but still not among the best. 3:35
Bracelet and clasp have held up very well over two years. 4:04
Finds the bracelet flexible, nicely finished and comfortable. 8:54
Case & proportionsmixed: Flat case ends and 20mm lugs make strap swaps easy. 2:09
Drilled lug holes make changing straps simple. 4:34
Considers 13.4mm thickness excessive for 200m water resistance, blaming the protruding caseback. 6:29
Wearabilitymixed: Feels slightly too thick on the wrist for what it offers. 6:57
Finishing & buildmixed: Scratch-resistant coating has kept the watch free of serious scratches. 4:34
Own example is slightly misaligned; sees alignment as a persistent Seiko problem requiring in-store inspection. 6:29
Versatilitypositive: Calls versatility the top strength, working with almost any strap. 7:26
On leather it becomes a sporty dresser rather than a true dress watch. 7:54
Valuenegative: Considers price versus quality no longer adding up against the market. 6:00
Felt it was great value two years ago, but rivals have caught up. 9:24
Offers much more quality than cheaper Seiko divers like the Turtle. 5:02
Compared with: Certina diver (specific model not named): Cheaper, better movement and clasp, ceramic bezel, 300m, slightly thinner.
Seiko Turtle: SPB143 costs more but delivers much more quality.

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Just One More Watch

Is This The Ultimate Seiko Dive Watch? SPB143J1

Video, 15 minHands-on reviewMay 2021

PositiveRecommends, with caveats

Sees the SPB143 as a handsome, well-built and fairly priced modern take on the 62MAS, with an excellent dial, bezel and bracelet quality. Criticises the unsigned crown, dust under the dial and a bracelet that doesn't match the angular case, and would personally lean towards the SPB185.

Suits: Seiko fans wanting an affordable, non-pastiche 62MAS-inspired diver

What they said, point by point

Designmixed: Considers the watch a handsome piece overall. 4:02
Feels the overall design doesn't work because the bracelet doesn't suit the head. 14:13
Dialpositive: Loves the grey sunburst dial and how it plays with light. 3:05
Finds the half-polished, half-brushed hands add something extra. 8:54
Is satisfied with the Lumibrite lume performance. 9:52
Notes the date window lacks a frame, which is unusual. 8:54
Case & proportionspositive: Finds the 40.5mm case very well sized. 4:02
Calls the coin-edge bezel a standout feature. 5:30
Dislikes the unsigned crown at this price. 5:59
Functionalitypositive: Praises the firm 120-click bezel with no back play. 5:59
Pleased the bezel insert aligns properly at 12. 6:28
Wearabilitypositive: Finds it wears very nicely on a seven-inch wrist. 9:52
Heavier than expected at 165g, but hides the weight well. 9:52
Compact lug-to-lug and downturned lugs mean thickness isn't noticeable. 11:20
Bracelet & strapmixed: Considers it possibly the best-made Seiko bracelet seen so far. 11:48
Rates the clasp as the best seen on a Seiko. 5:02
Notes significant end-link alignment issues and wobble. 12:18
Feels the curvy bracelet doesn't match the angular head. 14:13
Movementpositive: This example ran close to zero on the timegrapher. 6:57
Trades a smooth high-beat sweep for a long 70-hour power reserve. 7:26
Finishing & buildmixed: Praises the mix of brushed and polished case surfaces. 5:30
Found dust under the dial, unacceptable for a Japanese-made watch at this price. 11:48
Sees the unsigned crown as evidence of corner-cutting. 11:48
Versatilitypositive: Expects it to suit many straps and be easy to swap. 5:30
Originalitypositive: Faithful to the 62MAS without being a pastiche. 13:15
Feels it modernises the 62MAS look. 10:51
Valuepositive: Doesn't consider the roughly $1,000 price overpriced. 13:15
Sees strong appeal at the discounted price. 2:36
Compared with: Seiko Prospex SPB185: Reviewer would personally choose the SPB185; it looked better on the wrist.
Seiko SBDC051: Seiko should have launched the SPB143 in 2017 instead.
Seiko SPP-053: SPP-053 was too large and unlike the 62MAS; SPB143 delivers the look.
Seiko King Turtle / King Samurai: Suggested alternatives for budgets closer to $500.

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Worn & Wound

Battle of the $1,000 (ish) Divers: Seiko SPB143 vs. Doxa Sub 200

ArticleComparisonOct 2020Ed Jelley

PositiveRecommends, with caveats

The reviewer sees the SPB143 as an ideal Seiko tool diver, praising its stunning sunburst dial, excellent lume, 70-hour movement and scratch-resistant coating. The bracelet and clasp are clunky, and the case finishing is plainer than the Doxa's. Overall the comparison is called a draw.

Suits: Those wanting a tough, legible tool diver for nearly any activity

What the review says, point by point

Dialpositive: Finds the charcoal sunburst dial stunning as it plays with the light.
Considers the applied indices perfectly executed.
Likes the half-polished, half-brushed hands for adding shine without hurting legibility.
Says the lume is bright and long-lasting, far better than the Doxa's.
Case & proportionspositive: Finds the 47.8mm lug-to-lug ideal on a 6.75-inch wrist.
Appreciates how the case curves in profile to hug the wrist.
Notes the case wears somewhat chunkier than its 40.5mm dimensions imply.
Finds the brushed bezel bold yet refined thanks to its polished coin edge.
Finishing & buildmixed: Rates the Doxa's case finishing higher, calling the Seiko's plain and no-frills.
Sees nothing wrong with the heavy brushing on the case and bracelet.
Bracelet & strapnegative: Calls the three-link bracelet hefty and clunky, with an unwieldy clasp.
Says the oversized clasp reduces the bracelet's comfort and flexibility.
Thinks the watch excels on a nylon NATO strap.
Wearabilitypositive: Notes it wears a bit larger than its size but is not a monster.
Considers it comfortable and well sized for nearly any wrist.
Movementpositive: Considers the 70-hour power reserve ideal for people who rotate watches.
Welcomes the more premium movement with its longer reserve.
Functionalitypositive: Values the DiaShield coating for keeping the watch looking new.
Finds the bezel action duller and smoother than the Doxa's snappy bezel.
Feels it is a solid tool watch backed by strong tech and specs.
Versatilitypositive: Calls it a perfect tool watch for almost any activity.
Designpositive: Sees it as the ideal Seiko diver in both aesthetic and technology.
Feels it looks and wears better than most tool watches.
Compared with: Doxa Sub 200: Doxa edges it on case design, finishing and domed crystal.
Doxa Sub 200: Seiko wins on dial, hands and far superior lume.
Doxa Sub 200: Doxa's beads-of-rice bracelet is slimmer and more comfortable than Seiko's.
Doxa Sub 200: Seiko's movement and anti-scratch coating beat the Doxa's standout features.
Doxa Sub 200: Overall called a draw; the two are different beasts.

Read on wornandwound.com

Beyond the Dial

Hands-On Seiko SPB143 / SBDC101 62MAS Prospex 200m Diver

ArticleOwner's reviewAug 2020Allen Farmelo

Very positiveRecommends

The reviewer bought the SPB143 and considers it the affordable, reasonably faithful 62MAS tribute fans wanted. They find its finishing and dial far above cheaper Seiko divers and plan to sell their other Seiko divers, with only minor quibbles about the logo, bracelet and clasp.

Suits: Seiko fans wanting an affordable, faithful-enough 62MAS tribute diver

Disclosure: Reviewer owns it

What the review says, point by point

Dialpositive: Calls the dial almost perfect apart from the Prospex logo.
Dislikes the absence of a frame around the date window.
Finds the charcoal dial deep and consistent in colour under varied lighting.
Rates it among the most legible dive watches experienced.
Finishing & buildpositive: Case edges are not razor-sharp but clean with decent contrast.
Says it far surpasses the cheaper Seiko divers owned previously.
Case & proportionspositive: Excited by the darker colour of the super-hardened steel, which pairs well with the dial.
Finds the flat black bezel complements the materials and lets the dial shine.
Bezel action works well but is stiff and expected to loosen with use.
Bracelet & strapmixed: Rates the bracelet highly but short of great.
Would prefer screwed links over pin-and-collar, though accepts it at the price.
Sees the play in the links as a comfort benefit rather than a flaw.
Finds the diver's extension confusing, though the clasp is solid and comfortable.
Designpositive: Rectangular markers and hands capture the 62MAS character.
At a glance it reads like a 62MAS, which delights the reviewer.
Wearing it makes the reviewer feel confident and masculine.
Originalitypositive: Notes deviations from the original, arguing they help it stand as a modern watch.
Valuepositive: Believes the extra cost for finishing and design is well worth it.
Delivers the 62MAS feel at a relatively reasonable price.
Versatilitypositive: Plans to sell all other Seiko divers and keep only this one.
Compared with: Grand Seiko SBGH269: Grand Seiko's case and dial finishing remain clearly superior.
Seiko SKX007: SPB143 finishing is much crisper than the SKX's soft case edges.
Seiko 62MAS (1965 original): Not an exact replica, but evokes the original convincingly.

Read on beyondthedial.com

Fratello

Hands-On Review Seiko Prospex SPB143, 145, 147, And 149 Diver's Watches

ArticleHands-on reviewJul 2020Gerard Nijenbrinks

Very positiveRecommends

The reviewer is enthusiastic about the SPB14x series, praising the smaller 40.5mm size, straight hour hand, excellent bezel, case finishing and bracelet quality for the price. Only small quibbles: an unsigned crown, push-pin links and a single strap keeper. The reviewer would personally pick the SPB143.

Suits: 62MAS fans wanting a modern, more affordable tribute; suits smaller wrists

What the review says, point by point

Designpositive: Considers the watch highly attractive and says it evokes genuine feeling beyond technical merit.
Prefers the SPB143 as the more classic and conservative option over the blue-dial version.
Dialpositive: Happy that the hour hand is now straight rather than arrow-shaped, as desired.
Feels the applied luminous indices with polished frames give a high-end look.
Case & proportionspositive: Finds 40.5mm a more suitable size than the larger 42.6mm predecessor.
Feels the curved sapphire crystal looks and feels markedly better than flat Hardlex.
Finds the crown sharp, grippy and smooth when screwing down.
Was surprised the crown carries no signature or embossing.
Functionalitypositive: Bezel feels solidly mounted, turns with the right force and clicks precisely.
Finishing & buildpositive: Bezel insert is matte, hard-feeling and good-looking with engraved numerals, unlike cheaper siblings.
Describes the case as finely shaped, with brushed surfaces and polished chamfers.
Wearabilitypositive: Notes the soft polished underside edges aid comfort.
Believes smaller wrists will appreciate the watch's size.
Bracelet & strappositive: Finds the bracelet solid, nicely finished, adjustable, with a novel dive extension.
Notes the links use push pins rather than screws.
Has seen better bracelets, but not at this price level.
Silicone strap is soft and well made, but a second keeper would help smaller wrists.
Versatilitypositive: Found the blue dial hard to match with brown or black leather, favouring the SPB143.
Valuepositive: Views the specs as making these strong choices at around €1,050–1,350.
Disagrees that Seikos in this price range are expensive, citing the bezel quality.
Compared with: Seiko Prospex SPB051: New model is smaller, has a straight hour hand and longer power reserve.

Read on fratellowatches.com

Monochrome

Seiko Prospex Diver 62MAS Reissue SPB143, SPB147 & SPB149 Review

ArticleHands-on reviewJun 2020Brice Goulard

Very positiveRecommends

Sees the SPB14x 62MAS interpretations as handsome, well-executed and fairly priced modern divers. The reviewer highlights the compact, well-balanced case, fine finishing, pleasant bezel and a distinct personality within the Prospex range, and raises no real criticisms.

What the review says, point by point

Case & proportionspositive: Notes the 40.5mm case and sub-48mm lug-to-lug are notably compact given Seiko's tendency to go big.
Likes the simple skin-diver case with its oversized, unguarded crown.
Wearabilitypositive: Describes the watch as compact, short on the wrist and well balanced.
Finds that the silicone strap makes the watch lighter and even more compact.
Finishing & buildpositive: Praises the mix of brushed surfaces and polished bevels on the case.
Says the matte brushed bezel insert adds to the perceived quality.
Functionalitypositive: Finds the unidirectional bezel smooth and pleasant to operate.
Considers the screw-down crown and caseback a guarantee of solid water resistance.
Dialpositive: Appreciates the combination of 62MAS-inspired elements with modernised touches.
Calls the Lumibrite lume ultra-efficient and generously applied.
Sees the brown gilt SPB147 dial variant as the most accomplished of the range.
Designpositive: Finds all the colour combinations in the range pleasant.
Describes the watches as well executed with a cool design.
Originalitypositive: Likes that its symmetrical case feels different from most Prospex divers at this price.
Says the model has a personality of its own.
Valuepositive: Calls the watches nicely executed and fairly priced.
Describes the models as relatively accessible watches.
Compared with: Seiko Prospex SPB051 / SPB053: The new models are genuinely new, with smaller cases, new materials and new mechanics.

Read on monochrome-watches.com

Also covered by

Teddy Baldassarre

Seiko Prospex SPB143 Review

ArticleHands-on reviewSep 2025Bilal Khan

Very positiveRecommends

The reviewer sees the SPB143 as a standout, value-packed modern take on the 62MAS. They praise its near-perfect proportions, thoughtful finishing and legible dial, and note only a minor quibble about dial text.

Suits: Enthusiasts moving up from basic Seiko divers but not ready for a Marinemaster

Another review by this creator is counted instead: one vote per creator.

What the review says, point by point

Case & proportionspositive: Considers the dimensions a sweet spot for broadly wearable sizing.
Likes the simple screw-down crown and its grip.
Wearabilitypositive: Says the curved lugs keep the watch compact and snug on the wrist.
Finishing & buildpositive: Appreciates the brushed case with attractive beveling along the sides.
Highlights the faceted, brushed and polished hands.
Feels beveling on the bracelet lifts it upmarket.
Bracelet & strappositive: Finds the clasp appealing and secure with dual push-buttons and foldover lock.
Notes useful micro-adjustment plus a diver's extension.
Dialpositive: Calls the dial crisp, legible and a faithful yet modern take on the original.
Likes the modestly sized but legible date window at 3 o'clock.
Would remove the 'automatic' text given the Prospex logo, as a personal preference.
Movementpositive: Calls the 70-hour power reserve very healthy.
Designpositive: Credits the vintage-inspired design and proportions for making it a modern staple.
Originalitypositive: Believes Seiko succeeded by keeping the best of the 62MAS with modern manufacturing.
Valuepositive: Judges the $1,200 price very fair given the market.
Sees it as a top value versus pricier Swiss dive watches.
Doubts that $1,200 can buy a significantly better dive watch.
Compared with: Seiko Prospex SPB451: Prefers SPB143's 3 o'clock date over the newer model's 4:30 date.

Read on teddybaldassarre.com

Fratello

The Seiko SPB143 Revisited: Waiting Out The Hype For A Proper First Impression

ArticleHands-on reviewJul 2022Nacho Conde Garzón

Very positiveRecommends

After two weeks of daily wear, the reviewer finds the SPB143 lives up to its hype: a no-frills dive watch that ticks every box, with superb lume, great strap versatility and a realistic price. Likes it strongly but doesn't yet love it.

Suits: Anyone wanting a no-fuss, versatile dive watch at an attainable price

Disclosure: Brand loaner

Another review by this creator is counted instead: one vote per creator.

What the review says, point by point

Designpositive: Sees it as a simple dive watch that covers every requirement without frills.
Likes that it has quirky character without being excessive.
Notes nothing about the design is groundbreaking.
Dialpositive: Praises the dual-finish hands and polished markers packed with exceptionally bright lume.
Wearabilitypositive: Felt like a long-owned watch within minutes of putting it on.
Wore it daily for the entire two-week loan period.
Bracelet & strappositive: Every NATO and rubber strap tried worked well for comfort and looks.
Swapped the stock steel bracelet for a NATO immediately, so did not evaluate it.
Versatilitypositive: Believes the watch on a nubuck leather strap disproves the no-leather-on-divers rule.
Originalitymixed: Finds its role as a 62MAS tribute appealing.
Says the heritage angle was not the reason for liking it.
Valuepositive: Looks the part without being expensive.
Considers the price significant but achievable with some saving.

Read on fratellowatches.com

Specifications

Reference: SPB143
Case: 40.5mm, stainless steel with super-hard coating
Thickness: 13.2mm
Lug to lug: 47.6mm
Movement: Seiko 6R35 (automatic)
Power reserve: 70 hours
Water resistance: 200m
Crystal: curved sapphire (inner AR coating)
Bracelet or strap: stainless steel bracelet, three-fold clasp with extender
Announced: June 2020
List price (US): $1,200Launch/list price USD 1,200 on bracelet (seikowatches.com US page, archived 2021).

Creator Consensus is built only from what reviewers said. Prices, retailers and any commercial relationship never affect it. How consensus works