Features: Case / Bezel Material: Resin Resin Band Quartz Movement Resin Glass LED Light Selectable Illumination Duration- Afterglow Multi Time (4 Different Cities) World Time 10 Year Battery 1/100-Second Stopwatch Countdown Timer Measuring Unit: 1/10 Second 5 Daily Or One-Time Alarms Hourly Time Signal Full Auto-Calendar (To Year 2099) 12/24-Hour Format Button Operation Tone On/Off Regular Timekeeping Accuracy: ±30 Seconds Per Month Buckle Clasp 100M Water Resistance Size Of Case: 45 X 42.1 X 12.5mm