Watch Information Case / bezel material: Resin Resin Band Water Resistant Resin Glass Stopwatch 1/100-second stopwatch Measuring capacity: 59'59.99"" Measuring modes: Net time, split time, 1st-2nd place times Alarm/hourly time signal Daily alarm Hourly time signal LED light Light color LED:Green Calendar Auto-calendar (set at 28 days for February) Accuracy Accuracy: ±30 seconds per month 12/24-hour format Regular timekeeping: Hour, minute, second, pm, date, day Case size (L× W× H) : 38.2 × 35.2 × 8.5 mm Weight : 21 g