Features: case/bezel material: resin resin band mineral glass shock resistant led backlight (super illuminator) flash alert multi time (4 different cities) world time - 31 time zones 1/100-second stopwatch countdown timer 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: ±15 seconds per month 200m water resistance size of case: 55 × 51.2 × 17.4mm