Drive Method: Quartz; Reinforced water resistance for everyday use (10 ATM); Stopwatch function (1/100 second measurement, 10 hour meter); Lap split measurement function; Calendar (date and day) function; Carrying strap; Battery life: Approximately 3 years (SB-T74); Specifications: Case: APC Glass: Hardlex Thickness: 0.9 inches (22.0 mm) *Built in the watch. The batteries are running verified. This is a monitor battery.