Brand, Seller, or Collection Name:Casio Model number:B640WB-1AEF Part Number:B640WB-1AEF Model Year:2011 Item Shape:rectangle Dial window material type:Acrylic Display Type:Analog Clasp:Fold-over-clasp Case material:Stainless steel Case diameter:35 millimeters Case Thickness:8 millimeters Band Material:Stainless steel Band length:men Band width:20 millimeters Band Color:Black Dial color:Grey Bezel material:Resin Calendar:Day, date, and month Special features:N/A Item weight:4.16 Ounces Movement:Quartz Water resistant depth:50 Meters