Thoughts on this potential 167.005 Constellation Purchase

Knebo

I've serviced this movement a few times and the rotor is a common problem.
The rotor has a brass bushing that sits on a steel axle (on the automatic bridge of the movement). If not serviced for a long time, the brass bushing will wear out, the rotor will start having up/down play and eventually start rubbing on the edges of the movement (or caseback). It's an easy fix to replace the bushing IF you can get one. Omega doesn't sell the anymore. Even accredited Omega watchmakers apparently need to send in the old/worn axle in order to get a refurbished one.

Knebo

Ahhh, the legendary @Archer is replying to me 😀 An honor, Sir!
In fact, I've followed your guidance as a forum "lurker" to replace these bushings in the rotor. I'm an "advanced hobbyist", and had to find NOS parts in the open market.
I read from another watchmaker that even the Omega certified watchmakers had to send the old/used part back to Omega before getting a new one. Or is that the case for the reversing wheels (550 -1464) and I got confused? Anyway, I know that you will be right!