I can see deep gouges on case, almost polished out caseback, fallen paint from hands - to the seller's credit this is advertised as definitely needing full service, but price is high. How about the dial - just doesn't look right?
I wouldn’t say rust, but moisture got in at some point- not as bad as some I have seen shown in this forum.
I'd say it's a matter of relevance, i.e. what do you want to get/use it for, collect/restore/flip/wear, and price is high in what sense accordingly? In other words, is it high for a daily wear piece that needs a service, high for simply being a space-filler in a growing collection, etc. Just my thoughts.
I think it is a nice, genuine used watch. Some moisture damages on the dial. The case, besides the worn caseback is in quite well preserved condition. New lume can be attached. Consider the cost of a service as mentioned. What´s the asking price?
Oh, and a watchmaker with mad skills may be able to do a little dab test on the edges to see if they could lighten that edge funk without risking removing the tachy text.
Watch looks genuine and original, dial might need a cleaning if you have the right watchmaker to do so. A service is certainly required. Case shows wear and signs of polish but nothing major. Good luck with the hunt!!