Water Resistant, LED Backlight, Daily Alarm1/100 second digital stopwatch, Hourly Time SignalAuto Calendar, Accuracy: /-30 seconds per monthBattery CR2016, Approx. battery life: 7 years (If watch is never used)Module 3224, Size of case / total weight: 37.5 x 33.5 x

Water Resistant, LED Backlight, Daily Alarm1/100 second digital stopwatch, Hourly Time SignalAuto Calendar, Accuracy: /-30 seconds per monthBattery CR2016, Approx. battery life: 7 years (If watch is never used)Module 3224, Size of case / total weight: 37.5 x 33.5 x 9.5mm / 27g