Omega Speedmaster Professional — “Moon Watch”
Chronograph by Omega
The Speedmaster is a wristwatch with chronograph function by Omega, which was put on the market in 1957 and was then equipped with the manual winding movement 27 CHRO of 1942. In 1965 the Speedmaster was selected by the NASA as the official watch for the astronauts. Since 1966 it bears the name Speedmaster Professional and has received the typical design with a contrasting black dial.
The Omega Speedmaster Professional was the only watch which passed the extensive tests at the NASA. These tests included magnetic fields, gravity loss, temperature changes from -18 to +93 degrees Celsius, as well as extreme shocks and vibrations. It had a stainless steel case and was waterproof up to 50 meters. Initially the Calibre 321 was built in, since 1968 the manual winding movement 861 (or 1861) with 21.600 A/h was used …
Automatic
Manual Winding
Automatic Chronographs
Manual Winding Chronographs