Brand, Seller, or Collection Name:Casio Model number:GN1000GB-1A Part Number:GN-1000GB-1A Item Shape:Round Dial window material type:Mineral Display Type:Analog /Digital Clasp:Buckle Case material:Resin Case diameter:5.10 centimeters Band Material:Resin Band length:Men's Standard Band width:25 millimeters Band Color:Black Dial color:Black Special features:World time Movement:Quartz Water resistant depth:200 Meters