A Client has sent in his Conquest calibre 291 for a service and case back enamel repair. He has also added 4 extra case backs to be repaired.
The enamel medallion has at one point been touched up with nail varnish.
Lovely Longines calibre 291.
Not too bad, but slightly low amplitude.
I remove the oscillating weight.
I take apart the autowinder mechanism.
I have removed the hands and dial, rather complex date mechanism.
Here you can see the winding/setting mechanism.
The 291 has a very unusual gear train layout with a separate cock for the escape wheel.
Movement almost completely taken apart.
Movement is cleaned and ready to be put back together.
I fit a new mainspring.
I see that the balance moves freely after fitting the shock jewels.
Here I have fitted the setting/winding mechanism.
Gear train going back in place.
Gear train back together.
We have a ticking movement again as the balance goes back in place.
Thats more like it.
I fit the autowinder mechanism back in place.
Then the date mechanism goes back.
Dial and hands go back onto the movement.
The movement goes back into the case.
The customer also sent 4 extra case backs including the one on the watch that needed repairing.
I remove as much of the old and damaged enamel as I can.
I start by filling in the damaged lettering.
I then mix up the green.
Case backs after 24-hour curing.
Great looking watch!
It just looks so much better than before!