A question about service of a Cal 561

The problem turned out to be the rotor. The watchmaker replaced it and now all is well. Thanks to all who provided advice, especially Al who laid out all the alternatives.

I'm happy to contribute, and of course delighted that the real time advice made a real difference.

Keep in mind that rotors by nature typically have a very thin cross section from the area near the axle (or bearing) leading out to the edge where the weight is. The thin plate can be subject to deflection, so if the watch receives a shock it's not impossible for that to bend enough to have momentary contact with the edges of a bridge on the movement, causing that clicking sound.

The flexing can even crack this area of the rotor over time if the design is weak, like so:



Now as I mentioned previously in this thread, I've seen rotors bent to try to provide clearance instead of fixing the bushing, so it's possible that if there is a bend or twist in the rotor it may be closer to the bridges than it should be, and even a small external force causes it to hit the bridge. The only way to know it to open the watch and inspect the gap as you turn the rotor to see how close it is - I often see them with a slight twist that I correct using #8 tweezers...

Cheers, Al

I just realized that I never posted pictures of the Connie after it was repaired. I'll start with a before picture.

And here are some photos of the watch after it was repaired.

A second photo

And a third of the repair in progress

And a few of the 168.005 case

Signed crown

And the back with medallion

This was my first Connie, so long as i exclude the one that UPS lost, and I'm grateful for all I've learned from the OF members.