Help identifying a vintage omega watch

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Hello everyone,
Hope you are all ok ?

I have just purchased this vintage Omega De Ville Quartz for €80, and I’m trying to identify the exact reference before I receive it.

Unfortunately, these are the only photos I currently have from the seller.


Here is what I know:
  • Omega De Ville Quartz
  • Gold-plated case with stainless steel case back
  • Square/TV-style case
  • Champagne dial
  • Appears to have a single recessed push button on the side instead of a traditional crown
  • The seller confirmed it is running
  • The outside of the case back has “1350” engraved, but I believe this is just an inventory number, not the Omega reference.

I would really appreciate any help identifying:
  • The exact reference number
  • The movement/calibre
  • Approximate production year
  • Whether everything appears original (dial, hands, case, etc.)

Does anyone recognize this model?
Thank you very much for your help!
Highly appreciated