Features: resin case resin strap quartz movement mineral crystal digital display illuminator shock resistant electro luminescent backlight afterglow 1/100-second stopwatch countdown timer daily alarm hourly time signal auto calendar 12/24 hour display day and date display accuracy: 15 seconds per month solid case back buckle clasp 200m water resistance size of case: 48.5 x 43.0 x 14.7mm