Brand, Seller, or Collection Name:Casio Model number:GMAS130VC1A Part Number:GMAS130VC-1A Item Shape:Round Dial window material type:Mineral Display Type:Analog/Digital Clasp:Buckle Case material:Resin Case diameter:45.9 millimeters Case Thickness:15.50 Band Material:Resin Band Color:Black Dial color:Black Bezel material:Fixed Calendar:Full auto-calendar (to year 2099) Special features:Step tracker Item weight:7.52 Ounces Movement:Quartz Water resistant depth:200 Meters