Features: Case / Bezel Material: Resin Resin Strap Mineral Crystal Digital Display Shock Resistant Mud Resistant Tough Solar Electro-Luminescent Backlight World Time 31 Time Zones (48 Cities + UTC) 1/100-Second Stopwatch Countdown Timer 5 Daily Alarms (With 1 Snooze Alarm) Hourly Time Signal Battery Level Indicator Power Saving Function Full Auto-Calendar (To Year 2099) 12/24-Hour Format Button Operation Tone On/Off Regular Timekeeping Accuracy: ±15 Seconds Per Month Day Display Solid Case Back Buckle Clasp 200M Water Resistance Approximate Case Diameter: 55.5mm x 53.6mm Approximate Case Thickness: 17.5mm