This is the Freestyle Men's FS81239 Boiler Digital Black Polyurethane Strap Features: Model number: FS81239 Model Year: 2011 Dial window material type: Mineral Display Type: Digital Clasp: Buckle Case material: Stainless steel Case diameter: 40 millimeters Case Thickness: 13.5 millimeters Band Material: Polyurethane Band length: Unisex Band width: 30 millimeters Band Color: Black Dial color: Digital Bezel material: Stainless steel Bezel function: Stationary Calendar: Day and date Movement: Quartz Water resistant depth: 330 Feet Twenty-eight years ago, a couple of surfers turned a simple observation into a cultural icon. Nowhere could they find a watch that would withstand the abusive conditions of their lifestyle, and the damaging effect of salt water and sand. Necessity being the mother of invention, Freestyle was born. Freestyle has since evolved into a diverse collection of watches ranging from the iconic Shark watch to athlete designed signature time pieces.