James sent in the Ebel for a service. It’s a military watch, but it seems odd that it doesn’t have luminous hands, and the dots on the dial are more than crudely applied.
I guess the hands were changed at one point…
The case back with the usual engravings.
The movement is marked as a calibre 101, but it’s an AS1158, branded by Ebel. One of the case screws is missing, but apart from that, all looks well.
The balance has a Breguet overcoil.
The movement has a central second, with a bridge over the centre wheel.
The bottom plate has a little segment that allows you to put on a minute hand for testing.
And here is the reason why the watch doesn’t work any more.
Out of the cleaning machine, and ready for reassembly.
I found a new mainspring.
For this type of jewels, I use a Bergeon oiler.
A very odd thing is that the regulator markings are wrong – moving towards A/F makes it slower, and towards R/S makes it faster. No idea how that could happen!
Back together and beating.
First look – way too fast, and quite a beat error.
I take the balance off, and reshape the inner position of the hairspring, and adjust the collet.
Not bad, and that’s where I will leave it.
Now I can put the bottom plate back together.
The dial and hands go on.
And the watch is back together with a new crystal.