Brand, Seller, or Collection Name:Casio Model number:GA-800-1AJF Part Number:GA-800-1AJF Model Year:2017 Item Shape:Round Display Type:Analog and digital Case diameter:48.6 millimeters Case Thickness:15.5 millimeters Band Material:Resin Band Color:Black Dial color:Black Bezel material:Resin Special features:Timer, Stop watch Item weight:2.24 Ounces Movement:Quartz