Features: stainless steel case resin strap quartz movement caliber: 3534 mineral crystal black dial digital display shock resistance approximate battery life: 3 years for 1/100 second stopwatch flash alarm led backlight full automatic calendar regular timekeeping 12/24 hours display month, day and date display screwed case back buckle clasp 200m water resistance approximate case diameter: 42.8mm approximate case thickness: 13.5mm approximate lug width : 25mm