Introducing new color variations for the 35mm diameter face, large-case GA-100 Series for even bolder statements of the G-SHOCK spirit. Dial rings and raised hour markers provide three-dimensional depth that gives the face plenty of character. These models come with fluorescent hour and minute hands that provide sharp color accents. These watches are designed and engineered to deliver outstanding shock resistance, water resistance, and anti-magnetism. Over-sized buttons have checkered anti-slip surfaces to help make operations fast and sure. SPECIFICATIONS Case size (L× W× H) 55 × 51.2 × 16.9 mm Weight 70 g Case and bezel material Resin Band Resin Band Construction Magnetic Resistant Shock Resistant Water resistance 200-meter water resistance Power supply and battery life Approx. battery life: 2 years on CR1220 Glass Mineral Glass World time World time 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping Stopwatch 1/1000-second stopwatch Measuring capacity: 99:59'59.999'' Measuring modes: Elapsed time, lap time, split time Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9) Mach indicator (speed exceeding 1225 units/hour) Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Other: Auto-repeat Alarm/hourly time signal 5 daily alarms (with 1 snooze alarm) Hourly time signal Light LED light Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow Light color LED:Amber Calendar Full auto-calendar (to year 2099) Accuracy Accuracy: ±15 seconds per month Other features 12/24-hour format Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed) Digital: Hour, minute, second, pm, month, date, day