Lorenzo sent in this Air-King, as it stopped working.
Let’s see why …
This doesn’t bode well, as the damaged case back gasket will have let in dirt.
There is some dirt visible.
That doesn’t look too good. Huge beat error, and a very feeble amplitude.
You can see that the same plate is used for the movement version with date.
The rotor has lost a bit of its shine, but otherwise, the movement is in good condition.
There are some remnants of polishing paste here and there, and my guess is that the case was polished with just the crown removed, so the polishing compound could enter the movement.
The auto winder mechanism with the typical red reverser wheels.
Time to take the movement apart.
The balance and the pallet fork are removed.
The gear train is now visible.
We’ll put in a new mainspring.
Now the bottom plate comes apart.
The pendant tube has been “polished” as well, so quite a bit is missing, so I will replace that as well.
All the movement parts are clean.
The new Rolex mainspring.
I start off by putting the balance jewels back in.
The base movement is back together.
Now I can adjust the movement, and this looks a lot better than before.
Now I put together the bottom plate …
… and the auto winder mechanism.
The dial and hands are in great condition.
I case the base movement…
… and then put on the auto winder.
A nice looking Air-King.