Jaeger-LeCoultre

JLC Masterclass Part 2 – assembly of the Cal. 875

(Part 2)

Now the real challenges comes: putting all the part back into the movement!

Ok, the two spring barrels are back where they belong. It is more tricky than it looks on the picture…there is a wheel under the right spring barrel. And there are tiny wheels on top of the left spring barrel, which have a square center and hence must be turned to fit on the axis.

Center wheel (for the second) and minute wheel (the third one, lowest in the picture) installed. More tricky than expected.

The first bridge installed. Needs a bit of practice, since the pinions need to fit into the borings….obviously!

Dial side of the Cal. 875 with big date display

Once in a while, we need some help by the master himself…

Looks almost like a real watchtmaker ;-)

Reserve de marche mechanism put in place

The large bridge installed. Almost done…yet the escapement wheel is still missing….

This was the most difficult part: the escapement wheel needs to go under the bridge which I found really hard.  But it worked, all wheels were turning when I screwed the last bridge back in place. I was so excited, that I forgot to take a picture of the final result! Or maybe it was the excitement to see the Duometre a Spherotourbillon….

(End of part 2 – part 3 JLC tourbillions to be followed)