Features: resin case resin strap quartz movement mineral crystal black dial digital display shock resistant 1/100 second stopwatch countdown timer hourly time signal multi function alarm flash alert led backlight afterglow regular timekeeping full auto calendar 12/24 hours display day and date display screwed case back buckle clasp 200m water resistance approximate case diameter: 43.8mm approximate case thickness: 13.7mm approximate lug width: 25mm