Movement: Electronic movement Mirror: Resin mirror Case: ABS Strap: PU Watch buckle: stainless steel Waterproof depth :50 meters Functions: Time, stopwatch timing, display date, timer alarm, display week, luminous, 12/24 hour system. Dial width :43mm Strap width :18mm Dial thickness :16mm Total length :250mm Manual measurement, if there is any error, please refer to the actual! Every product sold provides quality assurance and after-sales service!