Omega Seamaster Calibre 1120 Jigsaw Part 2

[Geo]

Sorry for the delay with the progress report, but this has been one of these three steps forward and two steps backward jobs. It transpired that there were more issues than I first thought.

To reiterate the obvious problems:-

Centre Second Fourth Wheel - The gear wheel was off the shaft.

Escape Wheel - The wheel was off the shaft.

Auto Reversing Wheel - In bits.

Oscillating Weight Bearing - In bits.

Intermediate Ratchet Wheel - Separated.

Intermediate Date Wheel - Separated.

Lume on minute hand damaged

Lume on dial stained with oil.

The watch as received.

I eventually worked out how so many components were in bits that come assembled from Omega. The watchmaker before me had tried to clean surface rust off virtually everything except the balance assembly, by soaking in rust remover which is phosphoric acid. This resulted in not only rust, but steel being eaten away allowing the wheels to fall off the shafts and pivots having a rough finish and being reduced in size.

I had two attempts at assembling the watch, but unfortunately kept finding other damage.

The eventual parts list required was:-

Escape Wheel

Centre Seconds Fourth Wheel

Auto Reverser Wheel

Bearing For Oscilating Weight

Intermediate Ratchet Wheel

Intermediate Wheel

Escapement Lever

Barrel Arbour

Intermediate Date Wheel

Ratchet Driving Wheel

Third Wheel

Cannon Pinion With Driving Wheel

Mainspring

Total Cost £320 (not helped by postage on multiple orders)

THE ASSEMBLY.

Starting point, the bare main plate.

Keyless work assembled.

Barrel bridge with wheels and click spring in place.

Click plate fitted.

Barrel, ratchet wheel, intermediate wheel, and barrel bridge assembly fitted.

Escape wheel, third wheel and fourth centre second wheel positioned.

Wheel train bridge fitted.

Pallet fork and pallet bridge fitted.

Date mechanism and cannon pinion with driving wheel in place.

Date jumper located.

Date ring retaining plates fitted.

Wheel train and revering wheel located in the automatic device framework.

Automatic device lower bridge fitted.

Auxiliary reverser fitted.

Oscillating weight bearing fitted. (I had to make a tool to tighten the nut)

Oscillating weight fitted to automatic device framework, held by the three screws in the centre.

Completed automatic device ready for fitting to movement.

Balance assembly and oscillating weight assembly fitted to movement.

Dial and re- lumed hands fitted.

The new lume certainly works!

Movement cased and running strongly.

The scrap.

The result!

That's All Folks!

[rogart63]

Amazing work :)  :) Thanks for sharing .

[Andyclient]

Awesome Geo , what a terrific result , bet the owner is over the moon 

[frenchie]

Great work ! Thanks for posting all the details !

[dadistic]

Outstanding! Thanks for the assembly pictures. This has got to be one of the all time great saves  :)

[Marc]

Hats off to you Geo on an excellent resurrection.

 

My only hope is that the guy who was responsible for the mess you inherited has either learned some watchmaking since, or left the industry altogether, so he doesn't inflict any more such devastation.

 

What would be really amusing would be to find that he was an authorised Omega repairer, it would put the whole Swatch group restrictive supply policy into perspective. And on that point it's as well that you were able to complete the job before the restriction set in. I would imagine the AD cost for such a repair job would have exceeded the value of the watch.

[clockboy]

Great job done Geo. A real pro job, lucky watch, lucky customer.  Sadly this sort of repair will no longer be in our remit due to parts being unavailable.

[SeikoWatch]

Wow.. the amazing work you did !..Thanks Geo..

[Jim]

Very nicely done Geo   thanks for sharing.  

 

Jim 

[bobm12]

I knew it would come out better than new!

 

Cheers,

 

Bob

[Geo]

I knew it would come out better than new!

Not quite, but thanks anyway!

It's good to have you back Bob, the place is that bit quieter without you. :)

[Vich]

Excellent work George.

Vic

[ricardopalamino]

You did good...