Yes, everyone wants one of these. The Moonwatch.
Chris (our normally Rado Chris) is the lucky guy, and he got it from a chap in Japan at a good price. All it needs is a service, and that’s what I’m going to do.
The balance has a very low amplitude, and something is wrong with the hairspring.
First look at the Omega 1141 movement. The base movement is the ETA2890A2, and you can still see that on the plate next to the balance.
The auto winder bridge removed.
I correct the hairpspring problem, and that already looks better, but the movement definitely needs a service.
Great dial and hands.
The chronograph module. Movement and chronograph module can be easily separated, and I like that.
I start off with the movement.Enough old dirt and grease here.
The usual dirt and old grease in the mainspring barrel as well.
Having removed the top plate of the chronograph, you can get an eyeful of the mechanism. There are two unusual things about the 1141: Firstly, as I already mentioned, the movement and chronograph module can be easily separated, and secondly, the minute and hour counters work continually, e.g. they don’t jump every minute by one, or every 30 minutes by one, but move continually, which is quite a nice feature. The operation of the chronograph is very smooth as well.
Some solidified grease, but not too much dirt.
Bit by bit, I take the chronograph apart.
Not far to go now!
These three screws are used to fix the chronograph to the base movement.
And now I can take apart the rest of the movement.
Have a look at the amount of parts going into the cleaning machine …
I start off with a new mainspring.
The barrel bridge put together.
The bottom plate done. You can see two wheels in the middle. The bigger wheel transmits the power for the hour and minute hand, and the small wheel in the middle transmits the power for the chronograph and small second hand.
The wheel train put back together.
Once the movement is back together, I start on the chronograph. This is a slow process, and I meticulously follow the step-by-step instructions in the manual, which show every part and the lubrication that has to be applied.
The first wheels are in.
Slowly but surely, I am getting somewhere.
After a couple of hours, I am ready to put the cover plate on.
Now I adjust the movement and put it on the chronograph module.
Proof is in the pudding. With the chronograph module mounted, you want to see a beat rate that is as constant as without the module., which shows you that everything is put together and lubricated correctly. 1141s that need servicing will show meandering or jumping lines.Ready for the dial.
I just love this dial. Super slick, no fuss, no frills.
I case the movement without the auto winder.
And then put the auto winder on.
As straight as an arrow.
What a beauty. If I could afford one, I’d have one as well! The bracelet goes back on, and I’m done.