Yeah, no disrespect to that chrono24 seller, but that’s an insane price for a piece that I don’t think is generally regarded as super collectible.
I’m on a quest for a birth year watch (77 in my case) and my sense is that late 70s pieces (aside from Speedmasters and a few other things) are not high-demand. With diligence and patience, you should come by one of these for under half of what that person’s asking.
Just don’t fall for one of the color-tinted redials so popular in some foreign markets—unless that’s your thing.