Features: Case / Bezel Material: Resin Resin Band Quartz Movement Resin Glass / Spherical Glass LED Backlight Auto Light Switch, Afterglow Telememo Dual Time 8-Digit Calculator 1/100-Second Stopwatch Multi-Function Alarms Hourly Time Signal Auto-Calendar (To Year 2099) Regular Timekeeping Accuracy: ±30 Seconds Per Month Buckle Clasp Approximate Size Of Case: 50.4 × 37.4 × 12mm