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 13 offers
The lowest price for Seiko Prospex Automatic G.M.T Divers SPB381J right now is $1,800.00 at Kogan.com, compared across 13 retailers.
The all-time low was $1,126.00 on 9 May 2026 — today's price is 60% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 6 Oct 2026.
Last updated at 06/10/2026 22:28:56
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 1968 Heritage Diver Gmt Automatic Watch
Free delivery
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Seiko Prospex 42mm Automatic GMT Watch SPB381J
Free delivery
Seiko Prospex 1968 Diver’s Reinterpretation GMT 42mm - SPB381J
Delivery $10
Prospex 'Marine Green' GMT Mens Watch
Delivery $58.18
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Free delivery
Seiko Prospex 1968 Modern Re-Interpretation Dive Watch - SPB381J
Delivery between 9–14 Oct $15
Seiko Men's Prospex Sea Automatic SPB381J Watch - Michael Hill
Free delivery between 12–20 Oct
Seiko Prospex Automatic G.M.T Divers Watch SPB381J | Mazzucchelli's Jewellers
Free delivery
| Water Resistance | 20 ATM |
| Waterproof | Yes |
| Scratch Resistance | Scratch-resistant glass (Sapphire crystal) |
| Case Material | Stainless steel |
| Wrist Watch Style | Sport |
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 1968 Heritage Diver Gmt Automatic Watch
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!
Seiko Prospex 42mm Automatic GMT Watch SPB381J
Free delivery
Seiko Prospex 1968 Diver’s Reinterpretation GMT 42mm - SPB381J
Delivery $10
| Water Resistance | 20 ATM |
| Waterproof | Yes |
| Scratch Resistance | Scratch-resistant glass (Sapphire crystal) |
| Case Material | Stainless steel |
| Wrist Watch Style | Sport |
