Features: resin case resin strap quartz movement mineral crystal multicolour dial analog digital display shock resistant neobrite world time 1-second stopwatch accuracy: ±30 seconds per month regular timekeeping 12/24 hours display 5 daily alarms countdown timer auto calendar hourly time signal day and date display screwed case back buckle clasp 100m water resistance approximate case diameter: 41mm approximate case thickness: 13mm