The Casio G-Shock GA-2100-1A3ER is an analog watch with an all-black look. It has a 49 mm x 45 mm case made of carbon and resin and a black resin band.
It keeps time to within ±15 seconds per month. Functions include a 1/100-second stopwatch, world time across 31 time zones, a countdown timer, 5 daily alarms and a full auto-calendar to the year 2099. It also has a mute feature.
A double LED light and a super illuminator make the display easier to read in the dark. The watch is water resistant to 200 meters.
- Case size
- 49 mm x 45 mm
- Case thickness
- 11.8 mm
- Case material
- Carbon and resin
- Case color
- Black
- Band material
- Resin
- Band color
- Black
- Dial color
- Black
- Movement
- Analog
- Accuracy
- ±15 seconds per month
- Water resistance
- 200 meters
- Light
- Double LED light, super illuminator
- Stopwatch
- 1/100 second
- World time
- 31 time zones
- Timer
- Countdown timer
- Alarms
- 5 daily alarms, mute feature