Features: Resin Case Resin Strap Quartz Movement Resin Crystal Black Dial Digital Display Dual Time Daylight Saving On/Off Moon Data 1/100 Second Stopwatch Countdown Timer Daily Alarm Hourly Time Signal Multi Function Alarms LED Backlight Afterglow Button Operation Tone On/Off Fishing Mode Regular Timekeeping Full Auto Calendar 12/24 Hours Display Day And Date Display Screwed Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 50.10 mm Approximate Case Thickness: 16.80 mm