Features: Resin Case Resin Strap Mineral Crystal Black Dial Analog Digital Display LED Light World Time 1 Second Stopwatch Countdown Timer Alarms Hourly Time Signal Full Auto Calendar 12/24 Hours Display Luminous Hands Day And Date Display Screwed Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 43mm Approximate Case Thickness: 15mm Approximate Lug Width: 14mm