Now I’ve got a new mainspring and back gasket for Constantine’s Seamaster, I can put the watch back together again.
As usual, I start by pegging out all the jewel holes and manually cleaning the parts to get rid of all the baked-in dirt.
Then the parts go into cleaning fluid, then the rinse, and then they are dried.
Everything lined up and ready for reassembly.
The new mainspring goes into the barrel and is lubricated.
The barrel and barrel bridge are mounted.
Now I put the wheels of the gear train in, ready to put the wheel bridge in.
The wheel bridge is screwed into place, and the pallet fork and pallet bridge are mounted.
The balance wheel with the hairspring and the balance cock are cleaned separately to avoid damage to the hairspring. I oil the top jewel before putting the balance back on the cock.
I drop the balance and put the cock into place. As I have wound the watch beforehand, the balance starts to swing immediately.
Not bad for just assembled. The random dots that appear come from the movement being in the movement holder, which is put into the timegrapher, so there are some additional vibrations. They will disappear once the movement is properly cased.
I turn the movement around and put the winding and setting gear in. I have cleaned up the very rusty pull-out piece as well as I could, but I don’t want to take off too much material. If I would have gone for a highly-polished finish, it would have gotten too thin. I’d rather have the function than the beauty 😉
The hour and minute wheel and the date wheel go in, and I’m ready to put the date ring in.
Date wheel and plate in, next the day wheel and the dial.
The dial gets a final brush.
Now I press the hands on, making sure they are all parallel and don’t touch.
Before putting the auto-winder in, I put the movement into the case.
The auto-winder gear is put together.
And the movement is complete.
I couldn’t find the original Omega gasket, but Cousins sell a generic one that is very much the same size and material.
Back to its old glory.
The case isn’t entirely to my taste, but this is a great movement. Lovely watch!