Brand, Seller, or Collection Name:Casio Model number:GA-1100-1A1JF Part Number:GA-1100-1A1JF Model Year:2018 Item Shape:Round Display Type:Analog and digital Case diameter:5.2 centimeters Case Thickness:16.9 millimeters Band Material:Resin Band Color:Black Dial color:Black Special features:Timer, World time Item weight:3.04 Ounces Movement:Quartz