Brand, Seller, or Collection Name:Casio Model number:EFR-539L-1AVUDF (EX193) Part Number:EFR-539L-1AVUDF (EX193) Item Shape:Round Dial window material type:Mineral Display Type:Analog Case material:Steel Case diameter:5.4 centimeters Case Thickness:12 Band Material:Leather Band width:22 millimeters Band Color:Black Dial color:Black Calendar:Yes Special features:Light Item weight:7.04 Ounces Movement:Quartz Water resistant depth:100 Meters