Features: resin case resin strap quartz movement mineral crystal black dial analog digital display magnetic resistant shock resistant led light world time 1/1000 second stopwatch countdown timer 5 daily alarms hourly time signal 12/24 hours display regular timekeeping accuracy: ±15 seconds per month day and date display screwed case back buckle clasp 200m water resistance approximate case diameter: 51mm approximate case thickness: 17mm