Stopwatch 1/100-second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times Alarm/hourly time signal Daily alarm Hourly time signal LED light LED:Amber Calendar Auto-calendar (auto calendar set at 28 days for February) Accuracy: ±30 seconds per month 12/24-hour format Regular timekeeping: Hour, minute, second, pm, date, day Resin Glass Case / bezel material: Resin Resin Band Water Resistant Power supply and battery life Approx. battery life: 5 years on CR1616 Case size (L× W× H