One of my most recent purchases was this:

(this picture after I'd cleaned it up, fitted a new crystal, new bezel insert and a donor 6309A movement that is clean as a whistle and runs great).
I'd bought it knowing the movement was not working, and from the one picture it was clear it was very dirty / rusty.
After I'd swapped the movement, I decided to fully strip and then attempt a re-build of the original.
I found copious amounts of oil, rust and general debris inside - it was no wonder it wasn't running.

there was also evidence of previous botching - scratches, burred screw heads, a missing screw and incorrect screws.
I couldn't make it any worse if I tried.
Last week I was given a 60x magnification wide stand microscope so I took the opportunity to have a look up close.

Here are a few pictures I took of the hairspring and pallet forks:


and here is the hairspring after I'd cleaned it in essence of renata

I was really pleased that it went back to an even spacing. :grin:
I've got the movement back together and its running. I don't own a timeographer yet so can only do a basic time keeping test, but so far it looks good.

(this picture after I'd cleaned it up, fitted a new crystal, new bezel insert and a donor 6309A movement that is clean as a whistle and runs great).
I'd bought it knowing the movement was not working, and from the one picture it was clear it was very dirty / rusty.
After I'd swapped the movement, I decided to fully strip and then attempt a re-build of the original.
I found copious amounts of oil, rust and general debris inside - it was no wonder it wasn't running.

there was also evidence of previous botching - scratches, burred screw heads, a missing screw and incorrect screws.
I couldn't make it any worse if I tried.
Last week I was given a 60x magnification wide stand microscope so I took the opportunity to have a look up close.

Here are a few pictures I took of the hairspring and pallet forks:


and here is the hairspring after I'd cleaned it in essence of renata

I was really pleased that it went back to an even spacing. :grin:
I've got the movement back together and its running. I don't own a timeographer yet so can only do a basic time keeping test, but so far it looks good.