16800 purchase advice

[Vicious49]

I'm still learning about Rolex (the deeper you go, the more you get lost) and have found I don't like the latest generation of Rolexes. I've been looking for something reasonable that had a vintage vibe to it. Ideally a 5513 but the ones with nice Patina seem to go for too much. I started looking at 1680 as I like the date wheel with the open 6 and 9. I came across this 16800 that has a nice dark patina to the markers and a ghosted bezel.

Could you tell me if there's anything wrong with the watch and the price? So I know what to look for next time. Also, would you avoid purchasing from an international seller? And will I get hit with customs if I purchase internationally?

chrono24 won't give me the links for the pics so I'll just provide the link to the watch I'm looking at - https://www.chrono24.com/rolex/subma...-id7955375.htm