Features: case/bezel material: resin resin strap quartz movement caliber: 5338 mineral crystal analog digital display shock resistant led light afterglow world time (48 cities) 1/100-second stopwatch countdown timer 5 daily alarms hourly time signal full auto-calendar (to year 2099) 12/24-hour format regular timekeeping accuracy: ±30 seconds per month day and date display solid case back buckle clasp 100m water resistance approximate size of case: 46.3 x 43.4 × 15.8mm