Having just finished Mark Lovick's excellent "Maintenance Servicing" course, I'm now reassembling a Poljot 2614.2H movement. Unlike the the Unitas 6498 in the course, this movement has a friction point which I don't know how to releate to. It's certainly not easy to formulate a correct question, so I'll back it up with a couple of pictures.
Should any oil be applied to the friction point between the jewel (on the inner/intermediate bridge) and the fourth wheel pinion, and if so what kind of oil?