Brand, Seller, or Collection Name:Casio Model number:EFS-S510D-2AVCR Part Number:EFS-S510D-2AVUEF Item Shape:Round Dial window material type:Synthetic sapphire Display Type:Analog Clasp:Fold-over-clasp-with-double-push-button-safety Case material:Stainless steel Case diameter:43.8 millimeters Case Thickness:11.9 millimeters Band Material:Stainless steel Band length:Men's Standard Band width:21.7 millimeters Band Color:Silver Dial color:Black Bezel material:Stainless steel Bezel function:Stationary Calendar:Date Item weight:5.60 Ounces Movement:Quartz Water resistant depth:330 Feet