Not sure if mentioned in an earlier post. There is a very interesting article on watchprosite http://www.watchprosite.com/?page=wf.forumpost&fi=677&ti=1054643&pi=7607273 about the process of choosing a suitable watch for the space program by NASA. Some unknown reveals and documents have been found recently by the new OMEGA Museum Manager, Mr. Petros Protopapas. In summary: -In 1964 NASA sent an official Request For Proposal to 10 watch companies to supply a chronograph wrist watch suitable for the space program. -4 companies replied, ROLEX, OMEGA, LONGINES-WITTNAUER and HAMILTON. -Each OMEGA, ROLEX and LONGINES officially supplied 3 watches. One for testing, one for backup and one for the astronauts to give their personal opinion which one they'd prefer. So the story that NASA bought them "incognito" at a watch dealer in Houston is wrong. -The Speedmaster was not just the only watch that survived the ridiculous tests, but was also preferred by the astronauts. -The first official order of 17 Speedmaster took place April 1965. So the story that OMEGA was "surprised" that Ed White was wearing a Speedmaster on his space walk in June 1965 is simply bullshit. -Only the 105.003 had been tested by the NASA for the GEMINI and APOLLO program. The reason why OMEGA delivered also the 105.012 and 145.012 at the last orders in 1967/68 is simple, the 105.003 was out of stock. Thanks to Ken of watchprosite for that interesting post.