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Seiko Prospex Sumo Solar GMT Diver

Seiko Prospex Sumo Solar GMT Diver

4.9· 52 ratings

Best price now

$772.81at eBayObserved at 7:32 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Seiko Prospex Sumo Solar GMT Diver

The Seiko Prospex Sumo Solar GMT Diver is a large 45mm dive watch that runs on Seiko's solar quartz movement, so it charges from light and never needs a battery swap. It pairs 200m-class dive-watch build with a GMT hand for tracking a second time zone, and a scratch-resistant crystal. At $772.81 at eBay as of November 4, 2026, it sits well below the usual street price for a Sumo-line GMT, making this one of the cheaper ways into the model.

Best forDivers who want a big, legible tool watchTravelers who want a second time zone without windingBuyers who prefer solar quartz over automatic servicingWrist sizes that suit a 45mm case
Pros
  • Solar quartz movement charges from any light and avoids battery changes
  • GMT hand tracks a home or travel time zone
  • 45mm Sumo case with strong lume and a dive-ready bezel
  • Scratch-resistant crystal holds up to daily wear
  • Water resistant for swimming and recreational diving
Cons
  • 45mm case wears large and is heavy on smaller wrists
  • Quartz movement lacks the sweep and character some divers want
  • No sapphire on every variant, so check the spec sheet
  • Bracelet and clasp are functional rather than refined

Seiko Prospex Sumo Solar GMT Diver prices at every store

  • eBayNew

    In stockSold by cwtime

    $772.81Observed at 7:32 PM
    Visit store
  • Elebash JewelersNew

    In stock

    $775.00Observed at 7:32 PM
    Visit store

Also available at

  • CreationWatches.comCheck price at CreationWatches.com

Seiko Prospex Sumo Solar GMT Diver price history

Lowest price we've seen: $599.00 on Nov 5 at CreationWatches.com. Tracked across 3 stores since Nov 5.

What reviewers say

Owners rate it 4.9 out of 5 across 52 ratings, with praise centered on the solar movement, legible dial and solid build for the money. Most criticism is about size and weight rather than function.

Pros
  • Solar charging means no battery service
  • Clear, bright dial and bezel at night
  • Feels sturdy for the price
  • GMT hand is easy to set and read
Cons
  • Too big and heavy for smaller wrists
  • Quartz tick rather than a mechanical sweep
  • Stock bracelet feels basic

Specifications

Water Resistant
Yes
Watch Movement
Quartz
Scratch-Resistant
Yes
Case Size
45mm case

Questions and answers

Is the Sumo Solar GMT worth it at $772.81?
At $772.81 at eBay as of November 4, 2026, it undercuts most new Sumo GMT listings. You get solar charging, a GMT hand and dive-watch water resistance in one watch, which is strong value at that price.
How does it compare with the automatic Sumo?
The automatic Sumo has a mechanical movement and a smoother sweep but needs regular wear or winding to keep time. This solar GMT never needs a battery and adds a second time zone, at the cost of quartz tick and a thicker case.
Does the solar movement need a battery change?
No. The cell is charged by light through the dial and is designed to run for months in the dark once fully charged. Keep it out of a drawer for long stretches and it stays ready.
Will a 45mm case fit my wrist?
It is a large watch, so wrists under about 7 inches will likely find it top-heavy. Try one on if you can, or check the lug-to-lug measurement against a watch you already own.
What is in the box?
Expect the watch on its bracelet, a presentation box and paperwork. Confirm with the seller whether the full bracelet and any extra links are included before you buy.
When is it cheapest?
Diver prices dip around major sales events and when a new Sumo generation launches. The $772.81 eBay price as of November 4, 2026 is already near the low end of its recent range.
Where is the Seiko Prospex Sumo Solar GMT Diver cheapest?
At eBay, for $772.81, as of our latest check.
What do buyers say about the Seiko Prospex Sumo Solar GMT Diver?
Rated 4.9 out of 5 from 52 ratings.
Where can I buy the Seiko Prospex Sumo Solar GMT Diver?
3 stores we checked sell it, including eBay, Elebash Jewelers, CreationWatches.com.

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