Features: case/bezel material: resin resin strap quartz movement mineral crystal digital display 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 alarm hourly time signal full auto-calendar (to year 2099) accuracy: ± 30 seconds per month 12/24 hour display day and date display solid case back buckle clasp 200m water resistance approximate size of case : 44.7 × 40 × 12.5mm