After you decide which reference you prefer, you will probably spend some time looking through photos, reading the forum, chatting with fellow, more experienced, collectors to familiarise yourself with that reference. It helps you identify the good examples from the duds, as well as give you a ballpark of the price range.
After getting the watch, you will need a trusted watchmaker to check it and to perform any necessary servicing. For regular wear, I would recommend overhauling the movement and replacing the gaskets. Having a watchmaker with access to omega parts will make things simpler because you don't have to source for any replacement parts yourself.
Just to be clear, the reason we mention the effort and time is not to discourage you from buying vintage. We are just making sure you understand what is involved. The people here are more than happy to enable anyone who is keen. I know since I have benefited much from the generosity of this forum. And the feeling of finding the right watch is fantastic. So if you are keen, just hang around and I am sure you will find something
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