Features: case/bezel material: resin resin strap quartz movement caliber: 5540 mineral crystal analog digital display power reserve neobrite shock resistant double led light afterglow(super illuminator) step count using 3-axis acceleration sensor dual time 1/100-second stopwatch countdown timer 5 daily alarms hand shift feature full auto-calendar (to year 2099) 12/24-hour format regular timekeeping luminous hands accuracy: ±15 seconds per month day and date display solid case back buckle clasp 200m water resistance approximate size of case : 49 x 45.9 x 15.5mm