As of right now [ 13:45 PDT on 04 Sep 2015] the vintage watch database is back up and running. It looks very different compared to the previous incarnation, and works differently, but it does work (I'm not going to take the time to write out a tutorial on how to get what you want; you should make it an adventure for yourself). I was able to find the info for my Cal. 520 Seamaster made in 1959 without too much difficulty.
http://www.omegawatches.com/planet-omega/heritage/vintage/
Actually, the general layout of the entire
www.omegawatches.com site has been modified quite a bit compared to its state just a few days ago.
Click to expand...