Ferdinand sent in this pre-moon Speedmaster. On first sight, the hands look odd, as the bright green luminous compound just doesn’t look right.
Apart from that, the watch looks in good condition, but doesn’t reset properly.
Feast your eyes on the state of the movement! All screws are original, very few scratches, screw heads undamaged – this is probably the best 321 I’ve had in my workshop so far.
The amplitude isn’t bad, but all the jewels are dry, so the movement will need a service.
The hands have been re-lumed with bright green luminous compound.
The dial is still in great shape.
And so is the movement!
Time to take the chronograph apart.
The hammer, which resets the second and minute recorders to 0.
Now I can take the wheel bridge off.
The gear train.
The mainspring doesn’t look too bad, but I will replace it with a new one.
You can see that the old mainspring is slightly out of shape.
Now I take the bottom plate apart. On the right side sits the hour recorder, which is driven by the barrel.
The keyless works.
The last parts to come off the plate.
Now all goes into the cleaning machine.
Whilst that’s happening, I use some paint stripper to take the old luminous compound and paint off the hands.
The stripped hands.
Ready for new paint.
Hands painted. They now have to dry before I can apply the new compound.
The pushers need replacing.
The new mainspring – Omega original.
And into the barrel it goes.
The jewels are in place and oiled, and the balance swings freely.
The wheel bridge is back on.
I put the keyless works in so that I can wind the movement up.
The base movement is beating again.
And looking pretty good!
Now I can put the new pushers into the case. These are push-fit, and not screwed in, and they aren’t easy to get into the case…
With the base movement beating, I can start on the chronograph layer.
Now the rest of the bottom plate goes back on.
The dial is ready for the hands.
The case ring is back on the movement.
The newly painted and re-lumed hands are back on, and looking a lot better than the bright green stuff we had before.
The new pushers now need cutting down to the right length. After grinding off what is too long, I polish the surface, and re-cut the slit for the screwdriver.
Now I can case the movement with a new case back gasket.
Looking good!The new pushers.