Features: Bio Based Resin Case Bio Based Resin Strap Quartz Movement Mineral Crystal Blue Dial Analog Digital Display Shock Resistant Carbon Core Guard structure World Time 31 Time Zones 1/100 Second Stopwatch Countdown Timer 5 Daily Alarms Hourly Time Signal Double LED Light Button Operation Tone On/Off Regular Timekeeping Full Auto Calendar 12/24 Hours Display Luminous Hands Day And Date Display Screwed Case Back Buckle Clasp 200m Water Resistance Approximate Case Diameter: 45.40 mm Approximate Case Thickness: 11.80 mm