Beginner trying to buy vintage omega de ville

Hi everyone! I'm a newbie looking to buy a vintage omega. Sorry for the long post, it's my first time around here and I want to provide as much detail as possible 😁

I spotted this listing on eBay, which I really like. It's unfortunately been sold now but I wanted to get opinions on it, since I really like the watch and there are other similar listings on eBay and Chrono24. I'm a lady, and so the 32mm x 39mm case size really appeals to me. I have a presage that is 33mm x 39mm and I really like that sizing on me.

It is a model 162.0063, with a calibre 1012, and serial number 40564556, which checks out against omega serial number decoder. The omega website has an example of this reference here with a White dial, where the crown looks different. However, other examples of this watch with the black honeycomb dial has the black onyx crown, and clasp without omega logo (as seen in picture). So I feel that the crown and clasp are genuine. What are your thoughts?

I also know there are certain movements that are harder to maintain (e.g. 1020 movements?), so I was wondering if the calibre 1012 presented any similar difficulties? And are there other red flags with this model that I should be aware of?

Thank you! 😁

More pictures from listing for context

Make sure you familiarize yourself with actual sold listings on eBay so you know the price range they go from. Chrono24 is usually always overpriced imo.

I don't know enough about the specifics on this model to comment on originally or the movement, sorry. But looking at endless photos should help familiarize you more as well.