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  • Tough solar power technology eliminates the need to ever change a battery; built-in solar panel converts sunlight and fluorescent light into energy
  • Atomic timekeeping function receives 5 radio signals a day to calibrate the time; it can be set to receive signals manually or atomically
  • Digital display shows 12- or 24-hr. time along with the day and date
  • Features 4 daily alarms, snooze, hourly chime and auto calendar (pre-programmed to 2099)
  • 1/100-second stopwatch measures elapsed time, split time and 1st- and 2nd-place times
  • Auto EL backlight with afterglow lets you see the display in the dark
  • The Casio Casio G-Shock GW6900-1V solar atomic watch is water resistant to 200m (660 ft.)


View all Casio Digital Watches

REI membership


Best Use Multisport
Analog Or Digital Digital
Date Display Yes
Illumination Backlight
Water-Resistant Depth 200 meters
Stopwatch Yes
Lap Timer Yes
Countdown Timer Yes
Alarm Yes
Multiple Time Zones Yes
Solar-Powered Yes
Construction Resin
Watch Band Material Resin
Face Diameter 1.6 inches
Gender Unisex

The REI Difference

100% satisfaction guaranteed

We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

Gear & advice you can trust

At REI, we live and breathe the outdoors, and we're passionate about sharing our expertise with people of all skill levels. Whether you're new to the outdoors or a seasoned explorer, we'll take the time to understand your needs and help you find the right gear for you.

10% annual member refund

Anyone can shop at REI, but for a one-time $20 fee you can become an REI member and enjoy a lifetime of benefits. These include an annual member refund, typically 10% back on eligible purchases.*



*10% is typical but not guaranteed. Your refund is based on eligible purchases, which exclude REI gift cards, services, fees, REI Adventures trips, REI Garage, and discounted items. Learn more