Author Topic: Omega Speedmaster ref.175.0032.1 cal.1143 Automatic Reduced  (Read 3340 times)


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Omega Speedmaster ref.175.0032.1 cal.1143 Automatic Reduced
« on: April 03, 2017, 10:21:52 PM »
Omega chronograph with famous Dubois-Debraz-module (DD) came to service.

The watch is piled of modules and it comes in pieces pretty nicely.

First the autowinder module can be taken off. Below is shown the slightly modified ETA2890A2

After removing the crown the basic movement can be taken off. The last module in the case is DD-module.

DD-module with the dial removed.

Fully dissassembled DD-module..

..and fully disassembled basic movement.

First I cleaned the basic movement.

First the barrel bridge. The dent for the stem can be seen at top part of the bridge.

New mainspring.

2nd wheel placed below the barrel.

Next the barrel bridge can be put in place.

Going train.

Train bri.. cock tightened with one screw.

Next to assemble keyless works.

Cannon pinion being lubricated.

Here the dial side almost completed. Only shock setting and the chronograph driving wheel, which is driven on top of 4th wheel.

Pallet is placed.

and balance wheel.

Next the DD-module was washed.

This wheel transmits movement to second hand.

This bridge has permanently attached intermediate wheel for chronograph. Few more intermediae wheel in the bottom of the picture. These transmit movement from minute register to hour register.

Chronograph second counter wheel in place.

Bridge with hammers.

Intermediate wheels for regular second display.

And bridge tops it off. The A shaped spring keeps second hand movement smooth.

Brake for the chronograph.

On top of the picture spring to snap start-stop lever in position.

Vertical clutch which engages chronograph.

Start-Stop-lever in place.

The chronograph state information is stored in the position of the part next to start-stop lever.

On top of the aforementioned, comes part, which drives vertical clutch.

Here the bit is place, which actuallu rubs against vertical clutch.

Reset lever.

Reset-lever returning spring.

On top of reset lever comes linkage to move hammers when reset is encaged.

Then comes bridge to cover everything. Notice the slot for the vertical clutch driving bit.

After minute and hour wheel comes the dial.

Next to case. Crystal had a crack so it wa replaced.

New gaskets to pushers..

New crystal ready and new crown ready.

Case was submerged for couple of hours. The inside remained dry.

Clasp lock was also faulty so it was replaced.

The hands come back on.

The modules start to come together. Notice the L-shaped hacking lever.

Autowinder module assembled.

and in place.

Ready for the wrist.
« Last Edit: April 06, 2017, 10:54:20 PM by kanikune »


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Re: Omega Speedmaster ref.175.0032.1 cal.1143 Automatic Reduced
« Reply #1 on: December 08, 2017, 04:02:09 PM »
Masterful skills, Kanikune. I love this particular model, it's a classic. Do you get these often?


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Re: Omega Speedmaster ref.175.0032.1 cal.1143 Automatic Reduced
« Reply #2 on: December 09, 2017, 10:15:09 PM »
Not often. I believe service of these are getting more in common in the near future.