Looking to buy a vintage Day Date - Tips?

[Sasja]

Hi guys!

First of all, thank you for a great forum! I have been reading along for some time, but this is my first post.

I am looking to buy a vintage Rolex Day Date. When i look online, mostly chrono24, i see a lot of them, ranging from €4000 to €20.000.

But my question is, what to look for? Is there anything i should avoid? Any models/movements that are better than others? Im just looking for any tips for this great watch.

Thank you so much!