Hello i am trying for the love of God to repair a 6119c, I bought another movement for spares, I have watched a number of videos on some one else dismantling and reassembling the same movements. I used an ultrasonic like i do with any other movement and cleaned them both up, I put it back together and then the day wheel disc and the date dial, once i put the dial on, they seem to sit 1/2 off each other. any ideas or feed back would be good.
Balance wobble thoughts:
1. Balance staff pivot may be broken.
2. Jewels are reamed out.
3. Balance pivot jewels not seated properly.
4. Balance pivot jewels cap springs could be upside own or bent.
5. Balance cock not seated properly.
thats all I can think of.
Reading through a service sheet for the Rolex Daytona and the movement has a 'regulation nut' under the balance bridge. You can adjust this to get the correct endshake. How is this measured? Is a special tool used?