Features: resin case resin strap mineral crystal digital display shock resistant chrono function el backlight afterglow (illuminator) flash alert 1/100-second stopwatch multi-function alarm hourly time signal 12/24-hour formats am/pm display full auto-calendar (to year 2099) countdown timer accuracy: +/- 15 seconds per month day and date display solid case back buckle clasp 200m water resistance approximate size of case: 48.9mm x 42.8mm x 13.4mm