Features: case/bezel material: resin resin strap quartz movement mineral crystal analog digital display neobrite shock resistant led light afterglow world time 31 time zones (48 cities) 1-second stopwatch countdown timer daily alarms hourly time signal full auto-calendar (to year 2099) 12 hours display regular timekeeping accuracy: ±30 seconds per month day and date display solid case back buckle clasp 100m water resistance approximate size of case: 48.9 × 42.9 × 15.3mm