Omega watch from the Speedmaster collection. Omega Speedmaster Racing Co-Axial Chronograph 40mm 3188.8.131.52.02.001 premium quality sports watches feature a reliable automatic self-winding mechanism (powered by an amplitude of movement of the arm) of 3330, which implements the following features: hour, minute and second hands, as well as chronograph, date. The round watch case is 40 mm in size and height and will perfectly complement the look and beautify the wrist of its wearer. Omega Speedmaster Racing Co-Axial Chronograph Watches 40mm 3184.108.40.206.02.001 offered in our online store, use high quality stainless steel 316L (Swiss standard), as well as high strength sapphire glass, thus providing maximum protection against chipping and mechanical damage. The distinctive feature of this model is a white dial, whose hour indices provide hour markers. The Omega stainless steel bracelet completes its look with a steel-colored swivel clasp. The waterproofness of this model is 30M (WR30) – minimal exposure with water is allowed.