Features: Resin Case Cloth Strap Quartz Movement Resin Crystal Black Dial Digital Display 1/100-Second Stopwatch Daily Alarm Hourly Time Signal LED Backlight Auto-Calendar Regular Timekeeping 12/24 Hours Display Day And Date Display Screwed Case Back Buckle Clasp 50m Water Resistance Approximate Case Diameter: 47.1mm Approximate Case Thickness: 13.9mm