Introducing new Utility Color additions to GA-2100 thin, analog-digital combination line up from G-SHOCK, the watch brand that is constantly setting new standards for unmatched timekeeping toughness. A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength, crack resistance, and durability \-Case / bezel material: Carbon / Resin? \- Resin Band \- Neobrite \- Shock Resistant \- Mineral Glass \- 200-meter water resistance \- Double LED light \- World time - 31 time zones \- 1/100-second stopwatch \- Countdown timer \- 5 daily alarms \- Hourly time signal \- Hand shift feature \- Full auto-calendar (to year 2099) \- 12/24-hour format \- Button operation tone on/off \- Regular timekeeping \- Accuracy: ±15 seconds per month \- Size of case : 48.5×45.4×11.8mm