Brand, Seller, or Collection Name:Casio Model number:GA-100ST-2AJR Part Number:GA-100ST-2AJR Model Year:2017 Item Shape:Round Display Type:Analog and digital Case diameter:5.1 centimeters Case Thickness:16.9 millimeters Band Material:Silicone Band width:16.9 millimeters Band Color:Blue Dial color:Blue Special features:World time, Timer Item weight:2.56 Ounces Movement:Quartz