Features: resin case resin strap quartz movement mineral crystal white dial digital display shock resistant multi function alarm hourly time signal led backlight afterglow countdown timer flash alert regular timekeeping 1/100 second stopwatch full auto calendar 12/24 hours display luminous hands and markers month, day and date display screwed case back buckle clasp 200m water resistance approximate case diameter: 40.5mm approximate case thickness: 11.9mm