Features: case/bezel material: resin resin strap quartz movement caliber: 3436 mineral crystal digital display shock resistant electro-luminescent backlight flash alert world time 29 time zones (48 cities) 1/100-second stopwatch countdown timer 3 multi-function alarms hourly time signal auto calendar (to year 2099) 12/24-hour display regular timekeeping accuracy: ±15 seconds per month solid case back buckle clasp 200m water resistance approximate size of case: 48.8 x 46 x 12.7mm