You might find this thread useful:
https://omegaforums.net/threads/spotting-problems-with-watch-movements.36339/#post-413172
It goes through some common movement problems that can be spotted in sales photos, including the rubbing of the rotor.
Regarding the issue if that wear is old or not, and if the problem has already been fixed, that's a tougher question to answer. In some cases it's obvious by other indicators that the watch has not been serviced recently, and if it hasn't it's nearly 100% that the rotor issue has not been fixed. Although that issue is not difficult or expensive to repair on it/s own (just replacing and reaming a bushing to fit), in my experience of servicing hundreds of these movements, it is usually a sign that more expensive parts in the automatic winding will also be worn. While the bushing for the rotor is something like $10, the winding wheel (reversing wheel) for this watch is over $100, and I would say in 75% of the watches where the bushing is worn, the winding wheel is also worn.
I can't even recall the last time where I saw evidence of a worn rotor, where it has been rubbing, and the rotor had been fixed. I'm sure it happens, but it is the exception rather than the rule. As always, unless there is evidence that the watch has been recently serviced by a known good service provider, I would assume that the watch needs service and factor that into what you are willing to pay for it. If it turns out the watch doesn't need servicing, consider it a bonus.
Cheers, Al
Click to expand...