Brand, Seller, or Collection Name:Casio Model number:GA-100-1A4DR (G272) Part Number:GA-100-1A4DR (G272) Item Shape:Round Dial window material type:Mineral Display Type:Analog Clasp:Buckle Case material:Resin Case diameter:5.5 centimeters Case Thickness:16.90 Band Material:Resin Band length:Mens-Long Band width:18 millimeters Band Color:Black Dial color:Black Calendar:Day, date, and month Special features:Black resin strap Item weight:9.92 Ounces Movement:Quartz Water resistant depth:200 Meters