The G-Shock GA2100CA-8A Camo 'CasiOak' boasts a compact case size of 48.5×45.4×11.8mm and weighs a mere 51g. Its camo dial is housed in a robust carbon/resin case and bezel, complemented by a durable resin band. Featuring a shock-resistant Carbon Core Guard structure, it can withstand rugged conditions. With a water resistance of up to 200 meters and approximately 3 years of battery life, it's ready for any adventure. Its features include world time, stopwatch, timer, and alarm functions, as well as a double LED light for enhanced visibility. Additionally, it offers a mute feature, full auto-calendar up to the year 2099, and ±15 seconds per month accuracy. The hand shift feature ensures an unobstructed view of the digital display contents, making it a reliable companion for everyday wear and outdoor pursuits.

- 48.5×45.4×11.8mm Case Size
- 51g Weight
- Carbon/Resin Case and Bezel 　
- Resin Band
- Shock Resistant
- Carbon Core Guard structure
- 200 Meters Water Resistant
- Approx. battery life: 3 years on SR726W X 2
- Mineral Glass
- World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off
- Stopwatch
- Timer
- Alarm/hourly time signal
- Double LED light:
*LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
*LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
- Calendar: Full auto-calendar (to year 2099)
- Mute feature: Button operation tone on/off
- Accuracy: ±15 seconds per month
- 12/24-hour format
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
- Regular timekeeping:
*Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
*Digital: Hour, minute, second, pm, month, date