Features: Stainless Steel Case Resin Strap Mineral Crystal Blue Dial Analog Digital Display World Time Telememo LED Light 3 Daily Alarms 1/100 Second Stopwatch Countdown Timer Full Auto Calendar Day And Date Display Luminous Hands And Markers 12/24 Hours Display Screwed Case Back Buckle Clasp 50M Water Resistance Approximate Case Diameter: 52mm Approximate Case Thickness: 12mm