Inherited this vintage Omega Seamaster. I'm completely new to this; seeking ID, age, and advice on whether to service or keep as-is
Hi there!
I recently came into possession of this vintage Omega Seamaster. I know absolutely nothing about vintage watches and got completely overwhelmed trying to look this one up online. It's running and seems to be keeping okay time, but I have no idea when it was last serviced. The dial looks clean; the crystal has some scratches; the case is slightly discoloured (perhaps dirty?).
Questions:
To Restore or Keep As-Is? Is it financially worth having this serviced, or should I leave it alone? I want to make sure I don't accidentally destroy its value by polishing or replacing original parts.
What do I do about the strap? The current strap, which seems to be original, is a little small. Do I try to hunt down extra links or a period-correct vintage Omega strap/buckle, or does Omega still sell modern replacements that fit vintage pieces? Or should I just buy a nice aftermarket leather strap? What looks best on these?
Attached are clear photos. Any insight into the approximate decade or specific reference number would be incredible. Thanks for the help!