LA20WH-1B

Case / bezel material: ResinResin BandResin GlassWater ResistantLED light1/100-second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place timesDaily alarmHourly time signalAuto-calendar (auto calendar set at 28 days for February)12/24-hour formatRegular timekeeping: Hour, minute, second, pm, date, dayAccuracy: ±30 seconds per monthApprox. battery life: 5 years on CR1616