Casio - G-Shock - Ana-Digi Big Case - GA-110C-7A - Shock resistant (G-SHOCK) - Magnetic resistant - LED light -Auto light switch, selectable illumination duration, afterglow - World time: 29 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off, Home city / World time city swapping - 1/1000-second stopwatch - Countdown timer - Measuring unit: 1 second - Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments) - Others: Auto-repeat - Daily alarms: 5 independent daily alarms (4 one-time alarms and 1 snooze alarm) - Hourly time signal - Full auto-calendar (to year 2099) - 12/24-hour format - Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)) Digital: Hour, minute, second, pm, month, date, day - Accuracy: ?15 seconds per month - Approx. battery life: 2 years on CR1220 - Size of case/total weight :55.0 X 51.2 X 16.9 mm / 72 g