Brand: Invicta Model number: 17881 Part Number: 17881 Model Year: 2011 Item Shape: Round Dial window material type : Synthetic sapphire Display Type: Analog Clasp: Buckle Case material: Stainless steel Case diameter: 48 millimeters Case Thickness: 17 millimeters Band Material: Polyurethane Band length: Men's Standard Band width: 26 millimeters Band Color: Black Dial color: champagne Bezel material: Stainless steel Bezel function : Unidirectional Calendar : Date Special features: measures-seconds, Luminous, Chronograph Item weight: 16 Ounces Movement : Swiss quartz