Omega Speedmaster Professional

The Speedmaster has set benchmarks that, in our opinion, are hard to surpass: the first timepiece to be flight-qualified by NASA for manned space missions, the first watch to be worn by an American astronaut during a space walk, the first watch to be worn on the moon.  Despite this extraterrestrial heritage, in the beginning the Speedmaster was only intended for terrestrial pursuits. Omega released the Speedmaster in 1957, in the midst of a craze for racing chronographs. The name "Speedmaster" followed the naming trend set by the Seamaster and Railmaster models, and was also a subtle nod to the innovative brushed stainless steel tachymeter bezel. The first reference of Speedmaster, the CK 2915, contained the Lemania caliber .321 movement, developed by famed movement-maker Albert Piguet in 1946. Over the next few years, the Speedmaster saw several changes in dial and hand configurations, but at its heart retained the design elements that would be carried down through the decades: the b