Features: case/bezel material: resin resin strap quartz movement mineral crystal digital display shock resistant electro-luminescent backlight flash alert world time 29 time zones (48 cities) tide graph moon data 1/100-second stopwatch countdown timer 3 multi-function alarms hourly time signal full auto-calendar (to year 2099) 12/24 hours display multi functional alarm accuracy: ± 30 seconds per month day and date display solid case back buckle clasp 200m water resistance approximate size of case: 44.7 × 40 × 12.5mm