Case / bezel material: ResinAdjustable ClaspStainless Steel BandResin GlassWater ResistantLED lightAfterglow1/100-second stopwatchMeasuring capacity: 59'59.99"Measuring modes: Elapsed time, split time, 1st-2nd place timesDaily alarmHourly time signalMulti-function alarm (One-time or 7-time snooze)Full auto-calendar (to year 2099)12/24-hour formatRegular timekeeping: Digital: Hour, minute, second, pm, date, dayAccuracy: ±30 seconds per monthApprox. battery life: 10 years on CR2025Case size (L× W× H): 41.2 × 34 × 10.8 mmWeight: 451g