Brand, Seller, or Collection Name:Casio Model number:GA1100-1A3 Part Number:GA11001A3ER Item Shape:Round Dial window material type:Mineral Display Type:Analog and digital Clasp:Buckle Case diameter:49 millimeters Case Thickness:17 millimeters Band Material:Plastic Band length:men Band width:20 millimeters Band Color:Black Dial color:Black Bezel material:Resin Calendar:Day, date, and month Special features:Chronograph Item weight:3.04 Ounces Movement:Quartz Water resistant depth:200 Meters