Brand, Seller, or Collection Name:Casio Model number:GST-W300G-1A2JF Part Number:GST-W300G-1A2JF Model Year:2017 Item Shape:Round Display Type:Analog and digital Case diameter:49.3 millimeters Case Thickness:15.3 millimeters Band Material:Soft urethane band Band Color:Black Dial color:Black Special features:Stop watch, World time, Timer Item weight:3.04 Ounces Movement:Quartz