Help with buying first vintage constellation (pie pan)

Hi everyone,

I'm in South America right now, and I came across an omega constellation from a vintage jeweler that I loved. I know so little about watches that I thought maybe I could post here to get some help before making a huge purchase. The jeweler wanted $3800 for this 18k gold constellation but I think I can negotiate down to $3200. I unfortunately only took pictures of the front (see below), but can ask the jeweler for more photos of the movement/back/whatever you think is necessary. I know the band is not original.

I don't need everything to be perfect. Ultimately I want to wear this watch, so it doesn't need to be the collector's perfect constellation. But I do want to make sure I'm not being taken advantage of given my limited knowledge and am not buying a fake.

If that is damage to the dial, it would be a pass for me.

I appreciate your help and feedback on the watch, especially as I'm just starting to learn more about them and am trying to be smart about my purchases. @Bruce235 and @Larry S--how can you tell it's overpolished from the pictures alone? I'd think you'd have to look at the constellation logo on the back.