Features: case/bezel material: resin resin strap quartz movement mineral crystal white dial analog digital display shock resistant double led light afterglow (super illuminator) mobile link (wireless linking using bluetooth®) step counter dual time 1/100-second stopwatch countdown timer hand shift feature 5 daily alarms hourly time signal full auto-calendar (to year 2099) 12/24-hour format regular timekeeping accuracy: ±15 seconds per month luminous hands and markers day display solid case back buckle clasp 200m water resistance approximate size of case: 54.1 x 48.6 x 15.5mm