All Seiko lines › Prospex › Sea

“62MAS”

Seiko Prospex Sea, 39.9 mm (8L55)

Collector nickname. Where the name comes from

1 version of this watch is on Seiko's own sites right now, across 3 regions. Last checked Nov 13, 2026.

Estimated US price: About $7,905, converted from Seiko's list prices in SGD, TRY.
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
8L55
Case diameter
39.9 mm
Thickness
14.7 mm
Lug to lug
47.9 mm
Variants listed now
1
Regions
3

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.

PhotoReferenceColourStrap / braceletCaseEditionListed inSeiko list priceBuy
Seiko SLA037SLA037
Also coded SLA037J1
Not publishedSilicone
Translated from Seiko's regional page
Not statedSeiko Diver's Watch 55th Anniversary Limited EditionSeiko Diver’s Watch 55. Yıl Dönümü Limitli Üretim Modeli3 regions
Indonesia, Singapore, Türkiye
9,156 SGD
Singapore · Nov 13, 2026
about $7,905 in US dollars
No seller matched yet
Where Seiko lists it (3 sites) and its list prices
Seiko siteListed asSeiko list priceChecked
IndonesiaSLA037No price shown
SingaporeSLA0379,156 SGD
TürkiyeSLA037437,295 TRY
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

MovementOtomatis dengan kapasitas lilitan manualSeiko product page
FunctionsHentikan fungsi jarum detik Tampilan tanggalSeiko product page
Power reserve / batteryApprox. 55 jamSeiko product page
Water resistancePenyelam 200m / 660 kakiSeiko product page
CrystalSafir berbentuk kotakSeiko product page
Lug width19 mmSeiko product page
Seiko case codes8L55-00E0Seiko catalog data

Why these share a page

Every version here is published by Seiko with calibre 8L55 and either the same Seiko case code or the same case size. 2 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 SLA037.
“The 1965 “62MAS” Re-Creation, the SLA037”
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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