Rolex 645: shock protection cleaning and pivot wear

[Hiaz224]

Hi all!

I just bought this Rolex (no automatic works). I took it apart and cleaned all its parts. This movement came with no pallet fork. I am more interested in assessing the general state of the caliber, which is, in my opinion, great, except for the balance complete.

This watch came with a shock protection that is new for me. My concerns, just if you can give your opinions, are:

1. Are the pivots worn? The balance spins freely when I loosen the cock screw, but I think the lower one can be worn.

2. Can the internal rubies of the shock protections be removed for cleaning purposes?

3. Do you think that there is a small bend in the overcoil?

General comment: The caliber is easy to service. The problems come if you need to source parts (a pain in the back and extremely expensive); the balance coil is blue, which is more delicate and prone to be bent.

Thanks for your time...