I recently bought a lot of old pocket watches to use as practice material for my new watchmaking hobby and I was surprised to find an old beaten-up Omega between them. The sticker on the back of the encasing reads "Watch of Uncle Géry, killed at the front in May 1918 and found on his body". The serial number on the movement is 4022659, so I guess it could be dated somewhere between 1910 and 1914 because the war started than.

The movement of the watch is in surprisingly good condition, giving its age. Except for the balance wheel: that is bent and the balance spring is broken. I would like to get the movement back in working order, but I'm unable to find replacement parts for it without knowing what the calibre is. I would also like to know what the 1 2 G stamps mean...

 

12 grams of silver used to plate the case?

These old pocket watch mechanisms were sometimes identifiable only or principally by diameter, so by measuring and converting to 'ligne' might help narrow things down for you.

 

Thanks a lot. During my search I had found ''' measurements, but I didn't know what that meant. This will help my on my quest

 

So you mind sharing that info here as well? Could be nice for the info pool we're growing here

 

Sorry for the late reply. I'm busy with some other projects first. I'll reply here when I have more info...