Welcome to the forum
@vin0616 - I see you have already gotten a taste of some of the fauna and flora around here.
🤨
Vintage watches as mentioned can be a minefield to the uneducated. Someone with an untrained eye can see something spectacular looking only to discover it is a total fabrication- repainted dial, mismatched hands, case polished to death and lacking original finishes....patience and reading are your best resource- look at lots of examples of the references you like and learn their intricacies, what a correct dial looks like, what the chamfers and finishes of the case should look like, what hands are correct to each model.
Chrono24 is just as bad as eBay IMO, there are misrepresented watches there constantly, and some of the dealers who sell there are notorious for it.
Honestly, the best place to buy (as was mentioned within the first couple posts) is the classified’s right here. They are group monitored so if there is an issue or oversight by a seller it get called out quickly- fakes won’t even make it up. The “private watch sales” are from individual collectors and the “Watches for sale” are dealers who advertise their watches here. Even though you don’t have 200 posts yet, you can PM a seller if you see something that catches you eye.
Best of luck on your search.
Edit- Dan beat me to the punch on this as I was typing, sorry for the duplicate info.