Features: Resin Case Resin Strap Quartz Movement Mineral Crystal Black Dial Digital Display Shock Resistant 1/100 Second Stopwatch Countdown Timer Hourly Time Signal Multi Function Alarm Flash Alert LED Backlight Afterglow Regular Timekeeping Full Auto Calendar 12/24 Hours Display Day And Date Display Screwed Case Back Buckle Clasp 200m Water Resistance Approximate Case Diameter: 42.80 mm Approximate Case Thickness: 13.40 mm