Let’s first see what the timegrapher has to say …
That’s pretty bad. Wavy, low amplitude, beat error could be better. This movement needs a good clean.
The movement is protected by a dust cover.
First look a the movement. Nicely decorated, beautifully constructed – relatively simple but well designed.
The bottom plate. All looks clean.
I start off by taking apart the bottom plate. You can see traces of lubrication on the plate.
Now it’s time for the top plate.
You can now see the heart-shaped cams used to reset the chronograph wheels to 0 position.
Just the driving wheel for the chronograph to take off, and I’m ready to get down to the movement level.
Two wheels and the barrel to take out, and we’re there.
All parts ready for the cleaning machine.
Reassembly starts as usual with a new mainspring.
The friction clutch is screwed back on the barrel lid. These screws are about the size of a nit 😉
As I put the movement back together, I follow the oiling chart step by step so I don’t miss a point.
The first part done – now it’s time for the top plate.
With the wheels and wheel bridges in, I carefully oil each tooth of the escape wheel.
And the movement is ready for a first look on the timegrapher.
After a first adjustment, this looks pretty good.
Now the chronograph components are mounted.
Here as well, I follow the oiling chart. There are also several checks to be carried out at various points of the reassembly.
The chronograph is complete.
Detail of the locking pin for the hammer. After a bit of trouble getting the reset to work, all is fine, and ready for casing.
The hands go on.
Centering the second hand for the chronograph is always tricky and takes a bit of time.
Dust cover back on.
Beautiful chronograph with a dial that isn’t overladen with all sorts of stuff. This is a watch I would happily wear!