Casio Baby-G 3000 Series Ladies Digital Watch BG3000A-4DR Imported Introducing new 200M Water Resistant Slim Marine series. Shock Resistant200M Water ResistantLED Light with Afterglow5 independent daily alarms hourly time signal, countdown timer and stopwatch World Time29 times zones (48 cities), city code display, daylight saving on/offAccuracy: +/-30 seconds per month Countdown timer - Mearuring Unit: 1 Second, Countdown Range: 24 hours1/100 second stopwatch - Measuring capacity: 59'59.99", Measuring modes: Elapsed time, lap time, split time, 1st-2nd place times Hourly time signalAuto Calendar (pre-programmed until the year 2099)12/24 Hour FormatsBattery CR1616, Approx. battery life: 3 years