Features: resin case resin strap quartz movement mineral crystal gold dial digital display shock resistant world time 1/100-second stopwatch countdown timer 5 daily or one-time alarms selectable flash alert/vibration alert hourly time signal flash alert led backlight full auto-calendar button operation tone on/off low battery alert regular timekeeping 12/24 hours display month, day and date display screwed case back buckle clasp 200m water resistance approximate case diameter: 50.8mm approximate case thickness: 18mm