Seiko Mens 5 Sports Stainless Steel Automatic Watch with Silicone Strap, Brown, 22 (Model: SRPE80) - Seikos 4R36 mechanical movement beats at a frequency of 21,600 vibrations per hour with manual and automatic winding capabilities and a power reserve of 41 hours - Case Diameter: 42.5mm - The patterned black dial is framed by a gold-tone unidirectional rotating bezel and includes a day/date calendar and LumiBrite hands and markers - Stainless steel case with gold/ black ion finish and a brown and black combination leather/silicone strap - Water-resistant to 10 bar, 100 meters (300 feet) - Thickness:13.4mm,Diameter:42.5mm,Lug-to-lug:46.0mm - Distance between lugs : 22mm - Power reserve : Approx. 41 hours