G Shock GA2100SU 1ADR 'CasiOak' Data WatchStrapMaterial Gold Plated Stainless Steel the watch is encased in the watch is encased in stainless steel and boasts a modest 32mm diameter thanks to its water resistant construction • 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 the watch brand that is constantly setting new standards for unmatched timekeeping toughness