Seiko Prospex Automatic G.M.T Divers SPB381J
Discover the Seiko Prospex 'Marine Green' —a captivating blend of history and innovation. Inspired by Japan's pioneering hi-beat one-piece Diver's watch from 1968, this modern masterpiece pays homage to Seiko's horological legacy. Equipped with the cutting-edge Calibre 6R54, it stands as Seiko's inaugural mechanical GMT diving timepiece. Crafted for supreme comfort, the stainless steel bracelet boasts a low center of gravity, ensuring a perfect fit. Moreover, the watch flaunts an impressive three-day power reserve and is water-resistant up to 200m, making it an ideal companion for your aquatic adventures.
Discover the Seiko Prospex 'Marine Green' —a captivating blend of history and innovation. Inspired by Japan's pioneering hi-beat one-piece Diver's watch from 1968, this modern masterpiece pays homage to Seiko's horological legacy. Equipped with the cutting-edge Calibre 6R54, it stands as Seiko's inaugural mechanical GMT diving timepiece. Crafted for supreme comfort, the stainless steel bracelet boasts a low center of gravity, ensuring a perfect fit. Moreover, the watch flaunts an impressive three-day power reserve and is water-resistant up to 200m, making it an ideal companion for your aquatic adventures.
Discover the Seiko Prospex 'Marine Green' —a captivating blend of history and innovation. Inspired by Japan's pioneering hi-beat one-piece Diver's watch from 1968, this modern masterpiece pays homage to Seiko's horological legacy. Equipped with the cutting-edge Calibre 6R54, it stands as Seiko's inaugural mechanical GMT diving timepiece. Crafted for supreme comfort, the stainless steel bracelet boasts a low center of gravity, ensuring a perfect fit. Moreover, the watch flaunts an impressive three-day power reserve and is water-resistant up to 200m, making it an ideal companion for your aquatic adventures.
Discover the Seiko Prospex 'Marine Green' —a captivating blend of history and innovation. Inspired by Japan's pioneering hi-beat one-piece Diver's watch from 1968, this modern masterpiece pays homage to Seiko's horological legacy. Equipped with the cutting-edge Calibre 6R54, it stands as Seiko's inaugural mechanical GMT diving timepiece. Crafted for supreme comfort, the stainless steel bracelet boasts a low center of gravity, ensuring a perfect fit. Moreover, the watch flaunts an impressive three-day power reserve and is water-resistant up to 200m, making it an ideal companion for your aquatic adventures.
in 45 offers
The lowest price for Seiko Prospex Automatic G.M.T Divers SPB381J right now is $1,200.00 at gregoryjewellers.com.au, compared across 35 retailers.
The all-time low was $1,126.00 on 9 May 2026 — today's price is 7% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 24 Oct 2026.
Last updated at 24/10/2026 23:50:16
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Seiko Prospex SPB381J1 1968 Heritage Diver GMT Automatic Watch
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| Water Resistance | 20 ATM |
| Waterproof | Yes |
| Scratch Resistance | Scratch-resistant glass (Sapphire crystal) |
| Case Material | Stainless steel |
| Wrist Watch Style | Sport |
Seiko Prospex Sea 1968 Heritage Diver’s GMT 42mm
7-day returns
Seiko Prospex Heritage Diver SPB381J1
Seiko Prospex SPB381J1 1968 Heritage Diver GMT Automatic Watch
Delivery $9
Seiko Prospex SPB381J1 1968 Heritage Diver GMT Automatic Watch
Delivery $9
Seiko Prospex Spb381j1 Marine Green 1968 Heritage Gmt Diver
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
| Water Resistance | 20 ATM |
| Waterproof | Yes |
| Scratch Resistance | Scratch-resistant glass (Sapphire crystal) |
| Case Material | Stainless steel |
| Wrist Watch Style | Sport |
