You seem to be rather knowlegable about old speedmasters. Could you please tell me when mine was made, serial number is Omega Speedmaster is a line of chronographwristwatches produced by Omega SA.
While chronographs have been around since the late s, Omega first introduced this line of chronographs in Since then, many different chronograph movements have been marketed under the Speedmaster name. The manual winding Speedmaster Professional or 'Moonwatch' is the best-known and longest-produced; it was worn during the first Americanspacewalk as part of NASA's Gemini 4 mission and was the first watch worn by an astronaut walking on the Moon during the Apollo 11 mission.
The Speedmaster was not originally designed for space exploration. Instead, it was introduced in as a sport and racing chronograph following on from the early chronographs of the s and s, including the Omega The 'Speedmaster' name was coined from the model's novel tachymeter scale bezel in brushed stainless steel and by the convention set by prior Omega brands Seamaster and Railmaster. In , a second version, CK , was released with a black aluminum base bezel and later in , tachymeter bezel and alpha hands.
This was again updated in by references ST The watches used for Apollo 11's mission were the 'pre-Moon' versions. Chronographs were first developed for use in artillery for battle, but soon came to be indispensable for use in high performance machinery, specifically by pilots, but later also by race car drivers. The ability to time, and therefore calibrate, fuel consumption, trajectory and other variables allowed for both more efficient travel as well as better pilots and race car drivers.
When President Eisenhower decreed that test pilots would be the only permissible option for Project Mercury, the inclusion of a chronograph of some sort was virtually assured. Three years before the Speedmaster's official qualification for space flight, astronaut Wally Schirra took his personal CK aboard Mercury-Atlas 8 Sigma 7 on October 3, Instead, bids were officially solicited of several brands already familiar to the pilots who were joining the growing astronaut corps.
Brands under official consideration included Breitling, Rolex, and Omega, as well as others that produced mechanical chronographs. These watches were all subjected to tests under extreme conditions:. All chronographs tested were mechanical hand-wound models. Neither the first automatic chronograph nor the first quartz watch would be available until , well after the space program was underway.
The evaluation concluded in March with the selection of the Speedmaster, which survived the tests while remaining largely within 5 seconds per day rate. Several months later, Ed White made the first American space walk during Gemini 4 with a Speedmaster When worn on the wrist, the strap could be wound around several times to shorten its length. Based on the different charts below, It seems that starting around Omega was producing around 1 million watches a year.
You can use that number of sales to get a rough estimate where the charts below stop. Again, it can be frustrating not to know for sure. Until myself or someone else comes up with a complete chart, the information provided here is a good starting point. There are several places where the serial number is located on Omega Speedmasters.
Other speedmasters will have the serial number on the caseback below the Hippocampus-Seahorse. As stated above, these charts have been on the web for years, are incomplete and only give you a good guesstimate of production year.
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