GA-735A Construction Shock-resistant Water Resistance 200 meters World Time 31 time zones (48 cities and Coordinated Universal Time); daylight saving on/off; home city/world time city swapping Stopwatch 1/100 second; measuring capacity: 23:5959.99; measuring modes: elapsed time, split time, 1st-2nd place times; target time alarm, direct timing start from the timekeeping mode Countdown Timer Measuring unit: 1/10 second; countdown range: 60 minutes (1-minute increments) Alarm 5 daily alarms (with 1 snooze alarm); hourly time signal Other Functions Full auto-calendar; 12/24-hour format; button operation tone on/off; LED light (Super Illuminator) with afterglow: 1.5/3.0 seconds; hand shift feature Accuracy at Normal Temperature 15 seconds per month Battery Life Approx. 5 years on CR2016 Size of Case 57.553.418.4 mm Total Weight Approx. 75g