Features: Resin Case Resin Strap Quartz Movement Resin Crystal Black Dial Digital Display Dual Time 1/100-Second Stopwatch Hourly Time Signal LED Backlight Full Auto-Calendar Regular Timekeeping 12/24 Hours Display Month, Day And Date Display Screwed Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 36.8mm Approximate Case Thickness: 13.4mm