Seiko Prospex Automatic Diver's SRPL51K
Seiko Prospex SEA Automatic Diver’s SRPL51K1 The Seiko Prospex SEA Automatic Diver’s SRPL51K1 brings a fresh new look to a classic dive watch. Featuring a robust design, sculpted lines, and signature Seiko performance, this timepiece is built to conquer the depths—and turn heads above water as well. Powered by the 4R35 automatic movement, which can also be hand-wound, the watch offers a power reserve of approximately 41 hours. The vibrant blue dial includes a date display and is protected by durable Hardlex glass. A unidirectional rotating bezel and LumiBrite luminescent coating ensure visibility and functionality during dives. With a water resistance of 200 meters (20 ATM) and anti-magnetic protection, it’s ready for demanding conditions. The stainless steel case measures 41.7 mm in diameter and 12.3 mm in thickness, weighing 170 grams. The steel bracelet is 20 mm wide and 205 mm long, secured with a three-fold clasp with safety lock. A diver’s tool built for performance and designed for style—on land and at sea.
Seiko Prospex SEA Automatic Diver’s SRPL51K1 The Seiko Prospex SEA Automatic Diver’s SRPL51K1 brings a fresh new look to a classic dive watch. Featuring a robust design, sculpted lines, and signature Seiko performance, this timepiece is built to conquer the depths—and turn heads above water as well. Powered by the 4R35 automatic movement, which can also be hand-wound, the watch offers a power reserve of approximately 41 hours. The vibrant blue dial includes a date display and is protected by durable Hardlex glass. A unidirectional rotating bezel and LumiBrite luminescent coating ensure visibility and functionality during dives. With a water resistance of 200 meters (20 ATM) and anti-magnetic protection, it’s ready for demanding conditions. The stainless steel case measures 41.7 mm in diameter and 12.3 mm in thickness, weighing 170 grams. The steel bracelet is 20 mm wide and 205 mm long, secured with a three-fold clasp with safety lock. A diver’s tool built for performance and designed for style—on land and at sea.
Seiko Prospex SEA Automatic Diver’s SRPL51K1 The Seiko Prospex SEA Automatic Diver’s SRPL51K1 brings a fresh new look to a classic dive watch. Featuring a robust design, sculpted lines, and signature Seiko performance, this timepiece is built to conquer the depths—and turn heads above water as well. Powered by the 4R35 automatic movement, which can also be hand-wound, the watch offers a power reserve of approximately 41 hours. The vibrant blue dial includes a date display and is protected by durable Hardlex glass. A unidirectional rotating bezel and LumiBrite luminescent coating ensure visibility and functionality during dives. With a water resistance of 200 meters (20 ATM) and anti-magnetic protection, it’s ready for demanding conditions. The stainless steel case measures 41.7 mm in diameter and 12.3 mm in thickness, weighing 170 grams. The steel bracelet is 20 mm wide and 205 mm long, secured with a three-fold clasp with safety lock. A diver’s tool built for performance and designed for style—on land and at sea.
Seiko Prospex SEA Automatic Diver’s SRPL51K1 The Seiko Prospex SEA Automatic Diver’s SRPL51K1 brings a fresh new look to a classic dive watch. Featuring a robust design, sculpted lines, and signature Seiko performance, this timepiece is built to conquer the depths—and turn heads above water as well. Powered by the 4R35 automatic movement, which can also be hand-wound, the watch offers a power reserve of approximately 41 hours. The vibrant blue dial includes a date display and is protected by durable Hardlex glass. A unidirectional rotating bezel and LumiBrite luminescent coating ensure visibility and functionality during dives. With a water resistance of 200 meters (20 ATM) and anti-magnetic protection, it’s ready for demanding conditions. The stainless steel case measures 41.7 mm in diameter and 12.3 mm in thickness, weighing 170 grams. The steel bracelet is 20 mm wide and 205 mm long, secured with a three-fold clasp with safety lock. A diver’s tool built for performance and designed for style—on land and at sea.
in 50 offers
The lowest price for Seiko Prospex Automatic Diver's SRPL51K right now is $580.00 at StockX, compared across 38 retailers.
The all-time low was $442.72 on 1 June 2026 — today's price is 31% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 2 Nov 2026.
Last updated at 02/11/2026 06:34:41
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| Battery Life | 41 hours (power reserve) |
| Water Resistance | 200m |
| Waterproof | Yes |
| Scratch Resistance | Hardlex crystal |
| Case Material | Stainless Steel |
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| Battery Life | 41 hours (power reserve) |
| Water Resistance | 200m |
| Waterproof | Yes |
| Scratch Resistance | Hardlex crystal |
| Case Material | Stainless Steel |
