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Home/Browse/Seiko/Prospex Sea
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Seiko Prospex Sea
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Seiko · Prospex Sea

Seiko Prospex Sea

Diver

Stock unknown

Cached eBay asking average ≈ $401 · 2 asking listings · as of Jul 19, 2026

Buy from SeikoFind used on eBay

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Case

Diameter
42mm
Thickness
13.3mm
Lug-to-lug
48.6mm
Lug width
20mm
Material
Stainless Steel
Water resistance
300m

Crystal & dial

Crystal
Sapphire
AR coating
Anti-reflective coating on inner surface
Lume
LumiBrite on hands, index(es) and bezel

Movement

Caliber
Seiko 6R54
Type
Automatic
Power reserve
72h
Jewels
24

Design language

Case shape
round
Dial style
matte
Bezel
rotating
Bracelet
lug-attached
Hands
baton

AI-detected from the product image

Prospex Sea collection · 33 watches

62MAS
62MAS40.5mm
Captain Willard
Captain Willard42.7mm
Ice Diver
Ice Diver45mm
King Turtle
King Turtle45mm
Monster
Monster42.4mm
Prospex Sea
Prospex Sea41mm
Prospex Sea
Prospex Sea43.5mm
Prospex Sea
Prospex Sea41.3mm
Prospex Sea
Prospex Sea43.8mm
Prospex Sea
Prospex Sea41.7mm
Prospex Sea
Prospex Sea34mm
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition40.5mm
20 more in this collection
Prospex Sea 1965 Heritage Diver's WatchProspex Sea 1965 Heritage Diver's Watch PADI Special EditionProspex Sea 1968 Heritage Diver's GMTProspex Sea 1968 Heritage Diver's GMT WatchProspex Sea 1968 Heritage Diver's GMT Watch Limited EditionProspex Sea 1970 Heritage Diver's Black Series Limited EditionProspex Sea 1970 Heritage Diver's Save the Ocean Special EditionProspex Sea JAWS 50th Anniversary Limited EditionProspex Sea PADI Special EditionProspex Sea PADI Special EditionProspex Sea PADI Special EditionProspex Sea PADI Special EditionProspex Sea Save the Ocean Special EditionProspex Sea Save the Ocean Special EditionProspex Sea Save the Ocean Special EditionProspex Sea Seiko Diver’s Watch 60th Anniversary Limited EditionProspex Sea Seiko Diver’s Watch 60th Anniversary Limited EditionProspex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited EditionProspex Sea The Black SeriesSumo

2 colorways

Alternatives

01The living market

Asking prices & sales

Tracked on the secondary market, updated through the day. Not appraisals or offers.

RetailNot listed

1 for sale right now.

Observed range · Watch family · 4 weeks, Jul 6, 2026–Aug 31, 2026

  • ·An observed range with two or three recent price observations
  • ·The weekly trend, on a real time scale
  • ·The listing itself, priced and linked

Seiko on the secondhand market

+8.0%

2026 so far · +3.3% to +12.9% · 75 matched watches

In line with the index

Divers as a group: +7.3% · 297 matched watches

Year-by-year readings →

02The connection engine

More like this.

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Borealis Watch Co. Estoril 300 GMT

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Dryden Pathfinder

Dryden

Pathfinder

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Seiko Prospex Sea PADI Special Edition

Seiko

Prospex Sea PADI Special Edition

41.7mm · Automatic$650

Geckota Sea-Hunter Dive Watch

Geckota

Sea-Hunter Dive Watch

40mm · Automatic$349

Boldr Odyssey 40mm

Boldr

Odyssey 40mm

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View all alternatives

03The community take

Owners talk.

“

Owners widely praise the Seiko Prospex Sea for its excellent value, solid build, and comfortable wearability, with specific mentions of its matte black dial, excellent lume, and cushion case that wears smaller than its dimensions suggest. The 4R36 movement is noted for hacking and hand-winding capabilities, and the bezel action is described as smooth and precise. Some owners find the watch to be a legitimate tool with a fair price, while others describe it as big, thick, and heavy, uncomfortable for smaller wrists, though this is subjective as one owner found the size perfect. The solar quartz movement is also highlighted as a collection-worthy feature. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and comfortable, classic design.

Synthesized from 10 sources
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Fratello↗
Open the discussion

On video

On real wrists · 1

04The paper trail

In collections

Good GMTs

Collection · 7 watches

Cross-shops

Popular comparisons.

The matchups people make with the Seiko Prospex Sea most — open one to see it side by side.

  • Zelos Hammerhead (Tantalum LE)vs Seiko Prospex Sea→
  • Pagani Design PD-1661vs Seiko Prospex Sea→
  • Pagani Design PD-1662 GMT Black Greenvs Seiko Prospex Sea→
  • Pagani Design PD-1759vs Seiko Prospex Sea→
Ask the communityStart a discussion about the Prospex Sea — get takes from other collectors.Ask →

05The discussion

Talk about the Seiko Prospex Sea.