Case / bezel material: Resin Resin Band Resin Glass 50-meter water resistance LED backlight 1/100-second stopwatch Daily alarm Hourly time signal Auto-calendar (29 days for February) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, date, day Approx. battery life: 7 years on CR2016 Size of case : 44.4×43.2×10.8mm Total weight : 37g