Features: case/bezel material: resin resin strap quartz movement caliber: 3296 mineral crystal digital display electro-luminescent backlight afterglow shock resistant flash alert world time 29 time zones (48 cities) moon data tide graph 1/100-second stopwatch countdown timer 3 multi-function alarms hourly time signal full auto-calendar (to year 2099) 12/24 hour format accuracy: ±30 seconds per month solid case back buckle clasp 200m water resistance approximate size of case:44.9 × 43 × 12mm