The Omega Speedmaster "Dark Side of the Moon" Co-Axial Chronograph men's watch, model number 311.92.44.51.01.007. Features a black ceramic case combined with a black leather strap equipped with a deployment clasp. The tachymeter bezel is included along with the standard black dial. Powered by an automatic self-winding Omega Co-Axial Chronometer movement, which includes column wheel and boasts high precision (chronograph). Date functionality is present on the date sub-dial. A screw-down crown secures the crystal; this is a scratch-resistant sapphire lens protecting the complex mechanism. The case measures 44mm in diameter with a transparent case back allowing visibility of the automatic movement inside. Rated at 50 meters or approximately 165 feet water resistant, it comes with a standard 5-year WatchMaxx warranty against material defects.