Whilst we are at it, here is another Longines that Patrick dropped by (one of my very few customers that live anywhere near me and so come by the workshop).
Case and dial are in very good condition, so let’s see what the inside looks like…
A fair amount of scratches on the rotor. The auto winder is quite interesting, as an oval attached to the rotor pushes a jewelled disk away from the rotor, and a spring pushes it back towards the rotor, providing the winding action.
Time for some microscope shots. Have a look at the two wire springs – both have been badly mangled and could do with replacing.
The balance jewel is worn out a bit, and needs replacing.
The usual damaged around a bridge screw – somebody used a screwdriver that was too large.
More damage done by a too large screwdriver.The clutch lever spring isn’t original, but a filed-down spring from another movement.
Very nicely decorated bottom plate.
Quite a bit of dirt.
The wheel train.
The old mainspring doesn’t look too bad, but I will replace it anyway.
All the parts go through the cleaning machine as usual.
The new mainspring arrives in a tin lid. Normally, they are pre-wound, but that’s not a problem.
The new mainspring in the barrel.
With the base movement assembled, the balance starts beating.
Not too shabby.
Now I can put the auto winder assembly back on. Patrick found a donor movement, and I change all the little wire springs, and the complete balance over.
The bottom plate also gets a clutch lever spring that fits.
Some of the paint has come off the hands.
After polishing the hands, I re-paint the black stripe.Looking good!
Do I like Longines watches? Yes, I do. Well made movements, complex and interesting detail, what’s not to like? You can pick up decent vintage Longines watches at a good price.