Features: Case/Bezel Material: Resin White Resin Band Quartz Movement Resin Glass LED Backlight 1/100-Second Stopwatch Daily Alarm Hourly Time Signal Auto-Calendar (29 Days For February) Regular Timekeeping Accuracy: ±30 Seconds Per Month Buckle Clasp 50M Water Resistance Approximate Size Of Case: 43.8 × 40.7 × 10.9mm