All Seiko lines › Prospex › Sea
“62MAS”
Seiko Prospex Sea diver's, 40.5 mm (6R35)
Collector nickname. Where the name comes from
9 versions of this watch are on Seiko's own sites right now, across 20 regions. Last checked Nov 13, 2026.
Estimated US price: About $1,000 to $1,805 from Seiko's US list price and its list prices in other countries, converted.
Retailers ask: no retailer listing matched yet.
Photos are Seiko's own, shown from Seiko's sites. Click a photo to jump to that version.
- Calibre
- 6R35
- Case diameter
- 40.5 mm
- Thickness
- 13.2 mm
- Lug to lug
- 47.6 mm
- Variants listed now
- 9
- Regions
- 20
Listed means the watch was on an official Seiko regional site or store at the last check. It does not mean it is in stock, and it does not tell us whether Seiko is still making it.
Versions listed now
Same case and movement in every row. What changes is the colour, the strap or bracelet, the finish and where Seiko sells it. Seiko's spec sheets don't state dial colour, so a colour appears only where Seiko's US store tags one.
| Photo | Reference | Colour | Strap / bracelet | Case | Edition | Listed in | Seiko list price | Buy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPB145 Also coded SPB145J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 180 g | Stainless steel | 1965 Heritage Diver's Watch | 13 regions | 1,250 EUR France · Nov 13, 2026 about $1,385 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (14 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB213 Also coded SPB213J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 181 g | Stainless steel | Seiko 140. Yıl Dönümü Limitli ÜretimSeiko 140th Anniversary Limited EditionSeiko edizione limitata 140° anniversario | 11 regions | 1,200 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (11 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB297 Also coded SPB297J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 180 g | Stainless steel | 1965 Heritage Diver's Save the Ocean Special Edition1965 Heritage Diver's Watch Save the Ocean | 9 regions | 1,250 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (9 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB143 Also coded SPB143J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 180 g | Stainless steel | 1965 Heritage Diver's Watch | 5 regions | 1,200 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (5 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB239 Also coded SPB239J1 | Not published | Polyester 106 g | Stainless steel | 1965 Heritage Diver's Watch | 5 regions | 1,200 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (5 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB149 Also coded SPB149J1 | Not published | Not stated | Baja tahan karat Seiko's regional wording | 1965 Diver’s Modern Re-interpretation | 4 regions Indonesia, Malaysia, Singapore, South Korea | 5,900 MYR Malaysia · Nov 13, 2026 about $1,540 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (4 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB147 Also coded SPB147J1 | Not published | Silicone 111 g | Stainless steel | 1965 Heritage Diver's Watch | 2 regions Australia, USA | 1,000 USD USA · Nov 13, 2026 | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (2 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SPB253 Also coded SPB253J1 | Not published | Polyester 106 g | Stainless steel (hard coating) | 1965 Mechanical Diver’s Modern Yeniden Üretim The Black Series Limitli ModeliThe Black Series Limited Edition 1965 Mechanical Diver’s Modern Re-interpretation | 2 regions Australia, Türkiye | 1,895 AUD Australia · Nov 13, 2026 about $1,640 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (2 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPB473J1 | Not published | Nemesacél óraszíj szuperkemény bevonattal Seiko's regional wording | Nemesacél óratok szuperkemény bevonattal Seiko's regional wording | Limitált | 1 region Hungary | 595,000 HUF Hungary · Nov 13, 2026 about $1,805 in US dollars | No seller matched yet | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (1 site) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where to buy
No retailer listing has been matched to a version on this line yet.
Estimated US prices use Seiko's US list price where there is one. Otherwise they are the middle of Seiko's list prices in other countries, converted at rates dated Nov 12, 2026 from ExchangeRate-API (free open endpoint). Those list prices include each country's sales tax, so a converted figure usually runs higher than a US price would. Retailer prices are asking prices on the date shown, not sold prices, and leave out shipping, tax and import charges.
The build
| Movement | Automatic with manual winding | Seiko product page |
|---|---|---|
| Functions | Stop second hand function Date display | Seiko product page |
| Power reserve / battery | Approx. 70 hours | Seiko product page |
| Water resistance | 200m / 660ft diver's | Seiko product page |
| Crystal | Curved sapphire crystal | Seiko product page |
| Lug width | 20 mm | Seiko product page |
| Seiko case codes | 6R35-00P0, 6R35-00W0, 6R35-00X0, 6R35-01R0, 6R35-01T0, 6R35-01V0 | Seiko catalog data |
Why these share a page
Every version here is published by Seiko with calibre 6R35 and either the same Seiko case code or the same case size. 17 reference codes lead to this page.
What people call it
A name is shown only where a source ties it to a reference on this page. Collector nicknames are not Seiko's names unless the row says so.
| “62MAS” | Collector nickname. Source names SPB143, SPB147, SPB149. “So let’s take a look at the handsome Seiko Prospex Diver 62MAS Interpretations SPB143, SPB147 & SPB149.” The name belongs to Seiko's 1965 diver. The source calls this watch its reissue or re-interpretation. | Monochrome Watches read 2026-11-12 |
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