Hi Louis,
To answer some of your questions............
You can date your Omega by the caliber serial number, e.g. one of my 30T2SCs has a serial of 10115902 which places it somewhere between 1944 and 1947.
The late Chuck Maddox was thoughtful enough to record
this table.
Case Number - Is almost always shown inside the caseback and may appear as something like this "2384-2". You used to be able to use the Omega Vintage Database to find this number but now the format has changed and it's a bit more difficult to find.
But explore here.
These are the two starting points, and then you can use Steve Waddingtons excellent resource
here.
If you need further info, just look through the detail on this forum, or ask a a question.
Cheers
Jim
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