The Casio G-Shock GA-2100-1A is an analog-digital watch with an octagonal case, a form carried over from the original DW-5000C of 1983. The case is 11.8 mm thin, the thinnest among G-Shock combination models. It is shock resistant and water resistant to 200 meters.
The case is made of resin reinforced with carbon fibers. A carbon core guard structure encloses the module in a carbon case to protect it, giving the case strength and crack resistance. The watch has a resin band and a mineral glass cover. The GA-2100-1A has Neobrite.
Two LED lights illuminate the face and the digital display. Both have a super illuminator and afterglow, and the illumination duration can be set to 1.5 or 3 seconds. The watch also has world time and a 1/100-second stopwatch.
- Display
- Analog-digital
- Case material
- Carbon / resin
- Band
- Resin
- Glass
- Mineral glass
- Case thickness
- 11.8 mm
- Water resistance
- 200 meters
- Lighting
- Double LED light with super illuminator and afterglow; 1.5 or 3 seconds
- World time
- 31 time zones (48 cities plus UTC), daylight saving on/off, home city and world time city swapping
- Stopwatch
- 1/100-second; 00'00''00 to 59'59''99 for the first 60 minutes, then 1:00'00'' to 23:59'59''
- Durability
- Shock resistant