Seiko · Prospex Solar Diver · Ref SNE585P1
A small blue diver that runs on the day.
Blue dial, blue bezel, steel bracelet, and Seiko’s solar caliber V157 underneath. The SNE585 is the compact one in Seiko’s solar Prospex diver family: a 200m diver’s rating in a case that does not run oversized.

Charge & run
https://longislandwatch.com/seiko-38mm-prospex-blue-dial-solar-dive-watch-sne585/
https://www.seikowatches.com/se-en/products/prospex/sne585
Seiko hardened mineral glass
Hands and indices
Blue unidirectional bezel to match the dial
Light in, time out
The V157 is Seiko’s solar quartz caliber. A cell beneath the dial converts light into charge, stores it, and runs the watch from that store. There is no winding, and there is no battery to change on a schedule.
That makes this a watch to wear and forget. Leave it on the dresser near a window and it stays charged. The trade is that it is quartz, so there is no rotor to watch through a caseback and no mechanical beat.

Blue on blue
The dial is a deep blue sunburst with round lumed markers and a lumed triangle at twelve. The bezel matches it, blue with a white scale and a lumed pip. The date window sits at three with black text on white.
The case is brushed stainless steel with a screw-down crown at three and small crown guards. There is no shroud; this is the conventional little brother to the Tuna.

On size
This is the compact member of the range. Retailers describe it as about 38mm and Amazon lists 38.5mm, but Seiko has retired the reference and no manufacturer figure survives online. Amazon’s case-diameter field was wrong on the closely related SNE597, so this page does not print a number.
Read it as a small diver by modern standards, and check the listing you buy from.

Specs
- Reference
- SNE585P1
- Movement
- Solar Quartz V157
- Caliber type
- Seiko Solar Quartz
- Crystal
- Hardlex
- Water resistance
- 200m Diver
- Complications
- Date, Unidirectional Bezel
- Origin
- Seiko (Japan)
Specifications as published by Seiko. We research from manufacturer documentation and published sources rather than hands-on testing. Researched 2026-09-03.
Verdict
A compact 200m solar Prospex diver in tone-on-tone blue that never needs winding or a battery appointment.
Strengths
- Solar V157: no winding, no scheduled battery changes
- 200m diver’s rating with a screw-down crown
- A compact case that suits smaller wrists
- Matching blue dial and bezel on a steel bracelet
Trade-offs
- Discontinued; case diameter cannot be verified with Seiko
- Hardlex, not sapphire
- Quartz, so no mechanical movement to admire
- Sizing runs small for anyone used to 42mm divers
Buy it if
Someone with a smaller wrist who wants a real dive watch for everyday wear and no maintenance.
Skip it if
You want an automatic, a sapphire crystal, or a manufacturer-confirmed case size before you buy.
FAQ
Unconfirmed against Seiko. Retailers describe it as about 38mm and Amazon lists 38.5mm, but the manufacturer page is gone and Amazon’s case field was wrong on the sibling SNE597, so this page does not quote a figure.
Sources
Researched and last updated 2026-09-03. We do not test watches in hand; every figure above is traceable to the manufacturer or the sources listed here.
Seiko Prospex Solar Diver SNE585
Reference SNE585P1
Prices and availability change; the band above is a research figure, so check the current listing.
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