So let’s see what’s inside …
The crystal isn’t original, and the glue has discoloured and come off in some places.
This doesn’t look great.
I take the movement out and start off with the bottom plate. I can already see a lot of rust on the winding stem side – looks like water ingress through the crown. Also, check out the date wheel. The tooth next to the 21 is missing – something I only notice much later when putting the movement back together.
That’s a lot of rust. The crown wheel is so badly damaged that it will need replacing.
Now to the top plate.
The winder transmission wheels are super-rusty as well.
Dirt and rust everywhere.
Reassembly starts as usual with a new mainspring.
The wheel bridge in place.
All the rusty wheels are cleaned up using 9 micron lapping film.
That looks a lot better than before!
And the movement is ticking again.
As I put the movement together, I notice that the tube at the centre of the plate has come loose! £10.40 on eBay later, I have a new plate on the table. The new parts (shock spring and crown wheel) have arrived as well.
I reassemble again with the new plate.
The new crown wheel goes in and I start on the bottom plate.
The case has quite a bit of rust damage that won’t come off. Old and new case back gasket for comparison.
Cased with a new crystal.
The new, original Omega crystal looks a lot better than the one that was in there before – again, another great job done by Watch Glass Cutting UK Ltd.
An epic job comes to its end.