Features: case/bezel material: resin resin strap resin/spherical crystal luminous dial digital display el backlight afterglow dual time 1/100-second stopwatch daily alarm hourly time signal full auto-calendar (to year 2099) 12/24-hour format regular timekeeping accuracy: ±20 seconds per month day and date display buckle clasp 50m water resistance approximate size of case: 46.7 x 23.6 x 11.4mm