Features: case/bezel material: resin resin strap quartz movement mineral crystal digital display shock resistant led light afterglow data bank up to 25 sets of data and telephone number (12 digits) world time 29 time zones (48 cities + utc) 1/100-second stopwatch countdown timer 5 daily alarms (with 1 snooze alarm) hourly time signal full auto-calendar (to year 2099) 12/24-hour display button operation tone on/off regular timekeeping accuracy: ±30 seconds per month day and date display solid case back buckle clasp 200m water resistance approximate size of case: 45.9 x 42.6 x 15.4mm