Brand, Seller, or Collection Name:Casio Model number:DW-5750E-1BJF Part Number:DW-5750E-1BJF Model Year:2018 Item Shape:Round Display Type:Digital Case diameter:45.4 millimeters Case Thickness:13.4 millimeters Band Material:Resin Band Color:Black Dial color:Black Special features:Timer, Stop watch Item weight:1.92 Ounces Movement:Quartz