AIRWHEEL Men&rsquo;s Relaxation Automatic Mechanical Double Sided Hollow Engraving Steel Band Round Waterproof 19 Style Analog Wrist Watch (Champagne dial coffee ring gold inner core silver case silver strap) Dial : Fashion large dial , the disk hollow dial naked above , to the atmosphere of the fashion here ,as man . Case : alloy steel case , low density , high strength , luster . Crown : exquisite gear crown ,highlight the atmosphere . Movement : the backside hollow design , can always view the movement of clock mechanism . The watch support 12 or 24 hours system .