Features: Resin Case Resin Strap Quartz Movement Caliber: 3224 Resin Crystal Black Dial Digital Display 1/100-Second Stopwatch Led Backlight Full Auto-Calendar Daily Alarm Hourly Time Signal 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 Approximate Lug Width: 25mm