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Seiko Prospex Sea Solar GMT Watch

Seiko Prospex Sea Solar GMT Watch

A solar-powered movement, robust steel case, and travel-ready GMT function make this Sumo a standout.

Regular price $549
Regular price $775 Sale price $549
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Editor’s Note

Seiko's "Sumo" diving watches have earned a strong following over the years, with clean styling and large, robust cases. The Prospex Sea Solar GMT doesn't reinvent the style, but instead plusses it with a solar-powered GMT movement. The elapsed time bezel remains in place, with a 24-hour scale placed at the edge of the textured dial, working with a local-jumping bright orange GMT hand to tell the time in a second zone. Its Seiko 5K65 solar quartz movement charges via light and offers a nine-month power reserve, operating hour, minute, second, and GMT hands as well as a date window at 3 o'clock. Available in green or blue, the watch sits on a matching steel link bracelet.

Details & Specs

  • Case Material: Stainless Steel
  • Case Diameter: 45mm
  • Case Thickness: 13.2mm
  • Strap/Bracelet: Steel bracelet with push-button safety clasp and dive extension
  • Movement: Seiko 5K65 Solar (quartz)
  • Power Reserve: 9-months
  • LumiBrite on indexes and hands
  • Water Resistance: 200 meters