Features: Resin Case Resin Strap Quartz Movement Caliber: 3502 Resin Crystal Digital Display World Time LED Backlight 1/100 Second Stopwatch Countdown Timer Hourly Time Signal Regular Timekeeping Full Auto Calendar 12/24 Hours Display Day And Date Display Screwed Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 51.3mm Approximate Case Thickness: 15.8mm Approximate Lug Width: 18mm