Features: Resin Case Resin Strap Mineral Crystal Digital Display Shock Resistant Electro Luminescent Backlight Flash Alert 1/100 Second Stopwatch Countdown Timer Multi Function Alarm Hourly Time Signal Full Auto Calendar 12/24 Hours Display Day And Date Display Screwed Case Back Buckle Clasp 200M Water Resistance Approximate Case Diameter: 49mm Approximate Case Thickness: 14mm