Case / bezel material: Resin Resin Band Resin Glass 50-meter water resistance LED backlight 1/100-second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times Daily alarm Hourly time signal Auto-calendar (29 days for February) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, date, day Accuracy: ±30 seconds per month Approx. battery life: 7 years on CR2016 Size of case : 44.4×43.2×10.8mm Total weight : 37g What's in the box Warranty and Manual