All Seiko lines › Prospex › Sea › Marinemaster
Seiko Prospex Marinemaster diver's, 39.5 mm (6L37)
9 versions of this watch are on Seiko's own sites right now, across 35 regions. Last checked Nov 13, 2026.
Estimated US price: About $2,685 to $2,800 from Seiko's US list price and its list prices in other countries, converted.
Retailers ask: $2,800 to $3,868 across 3 listings at 2 sellers, checked Nov 13, 2026. See the sellers
Photos are Seiko's own, shown from Seiko's sites. Click a photo to jump to that version.
- Calibre
- 6L37
- Case diameter
- 39.5 mm
- Thickness
- 12.3 mm
- Lug to lug
- 47.2 mm
- Variants listed now
- 9
- Regions
- 35
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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | SJE099 Also coded SJE099J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 155 g | Stainless steel | Marinemaster 1965 Diver’s Modern Re-interpretationMarinemaster 1965 Diver’s Modern Yeniden Üretim ModeliMarinemaster 1965 Heritage Diver'sMarinemaster 1965 Heritage Diver's WatchMarinemaster Reinterpretacja zegarka do nurkowania z 1965 rokuMarinemaster | Diver's Histórico de 1965 | 34 regions | 2,800 USD USA · Nov 13, 2026 | From 2,800.00 USD Teddy Baldassarre · 2 sellers checked | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (39 sites) and its list prices
Buying options (2)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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 | SJE101 Also coded SJE101J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 155 g | Stainless steel | Marinemaster 1965 Diver’s Modern Re-interpretationMarinemaster 1965 Diver’s Modern Yeniden Üretim ModeliMarinemaster 1965 Heritage Diver'sMarinemaster 1965 Heritage Diver's WatchMarinemaster Reinterpretacja zegarka do nurkowania z 1965 rokuMarinemaster | Diver's Histórico de 1965 | 32 regions | 2,800 USD USA · Nov 13, 2026 | From 3,495.00 EUR Seiko Boutique Ireland · 1 seller checked | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (37 sites) and its list prices
Buying options (1)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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 | SJE117 Also coded SJE117J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender | Stainless steel | Diver's Histórico de 1965Marinemaster 1965 Heritage Diver's Watch | 30 regions | 2,800 USD USA · Nov 13, 2026 | Not seen in stock 1 seller checked | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (34 sites) and its list prices
Buying options (1)Offers seen available at the last check come first, then by item price. Shipping, taxes and import charges are not included. Commission never affects the order.
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 | SJE119 Also coded SJE119J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 155 g | Stainless steel | Diver's Histórico de 1965Marinemaster 1965 Heritage Diver's Watch | 30 regions | 2,800 USD USA · Nov 13, 2026 | No seller matched yet | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (34 sites) and its list prices
Buying options (0)No seller offer has been matched to this exact variant yet. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SJE097 Also coded SJE097J1 | Not published | Not stated Clasp: Three-fold clasp with secure lock , push button release with extender 155 g | Stainless steel | LimitáltSeiko Brand 100th Anniversary Marinemaster 1965 Diver’s Modern Re-interpretation Limited EditionSeiko Brand 100th Anniversary Marinemaster 1965 Heritage Diver's Watch Limited Edition | 3 regions Australia, Hungary, USA | 2,800 USD USA · Nov 13, 2026 | No seller matched yet | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Where Seiko lists it (3 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SBEN007 | Not published | Not stated 155 g | Stainless steel; case back: stainless steel and sapphire glass Translated from Seiko's regional page | マリンマスター 1965 ヘリテージ | 1 region Japan | 429,000 JPY Japan · Nov 13, 2026 about $2,685 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. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SBEN009 | Not published | Not stated 155 g | Stainless steel; case back: stainless steel and sapphire glass Translated from Seiko's regional page | マリンマスター 1965 ヘリテージ | 1 region Japan | 429,000 JPY Japan · Nov 13, 2026 about $2,685 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. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SBEN011 | Not published | Not stated 155 g | Stainless steel; case back: stainless steel and sapphire glass Translated from Seiko's regional page | マリンマスター 1965 ヘリテージ | 1 region Japan | 429,000 JPY Japan · Nov 13, 2026 about $2,685 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. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | SJE117JC | Not published | Not stated | Stainless steel; case back: stainless steel and sapphire glass Translated from Seiko's regional page | マリンマスター 1965 ヘリテージ | 1 region Japan | 429,000 JPY Japan · Nov 13, 2026 about $2,685 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
Asking prices for new watches at the last check. Each was in stock at that check, but stock moves, and shipping, tax and import charges are not included. Each reference links to the seller's page.
| Seller | Version | Asking price | Checked |
|---|---|---|---|
| Seiko Boutique Ireland | SJE099 | 3,495.00 EUR about $3,868 | Nov 13, 2026 |
| Seiko Boutique Ireland | SJE101 | 3,495.00 EUR about $3,868 | Nov 13, 2026 |
| Teddy Baldassarre | SJE099 | 2,800.00 USD | Nov 13, 2026 |
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 | 28,800 vibrations per hour (8 beats per second) Stop second hand function | Seiko product page |
| Power reserve / battery | Approx. 45 hours | Seiko product page |
| Water resistance | 200m / 660ft diver's | Seiko product page |
| Crystal | Box shaped sapphire crystal | Seiko product page |
| Lug width | 20 mm | Seiko product page |
| Seiko case codes | 6L37-00B0, 6L37-00C0 | Seiko catalog data |
Why these share a page
Every version here is published by Seiko with calibre 6L37 and either the same Seiko case code or the same case size. 14 reference codes lead to this page.
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