Features: Resin Case Resin Strap Mineral Crystal Black Dial Analog Digital Display Mud Resistant Neobrite Carbon Core Guard Structure Shock Resistant Double LED Light Mobile Link Digital Compass Altimeter Barometer Thermometer Step Tracker World Time Sunrise And Sunset Time Display 1/100 Second Stopwatch Countdown Timer 5 Aaily Alarms Hourly Time Signal Full Auto Calendar 12/24 Hours Display Day And Date Display Accuracy: ±15 Seconds Per Month Solid Case Back Buckle Clasp 200M Water Resistance Approximate Case Diameter: 53mm Approximate Case Thickness: 19mm