This Watch Features: Hourly Time Signal Auto-Calendar pre-programmed until the year 2099 Daily Alarm 4 daily and 1 snooze alarm Module 5081 Approx. Battery Life 2 years Battery CR1220 Countdown Timer Shock Resist Backlight Auto LED light with afterglow Water Resistant up to 200M 12/24-Hour Formats Accuracy +/- 15 seconds per month Magnetic Resistant World Time 29 times zones 48 cities + UTC Stopwatch 1/1000 Second