Omega Seamaster Co-Axial 2500

In 1999 Omega released it’s calibre 2500 movement with a Co-Axial escapement.

The co-axial escapement was a revolutionary system developed by George Daniels (a British watchmaker) which, in effect, reduced friction and thus virtually eliminating the requirement for lubrication in the escapement of the watch. Theoretically this ensures greater accuracy over time and reduces the need for servicing.

This is revolutionary because the watch escapement and the theory behind it has been mostly unchanged for over 200 years.

Here we have an Omega Seamaster with a co-axial escapement.

Omega Seamaster Co-Axial
Omega Seamaster Co-Axial

Back removed. Revealing the 2500 movement
Back removed. Revealing the 2500 movement
The movement is out of the case and hands are removed.
The movement is out of the case and hands are removed.
Now ready to strip the movement to pieces
Now ready to strip the movement to pieces before cleaning.
A close up reveals a small amount oil had spread.
A close up reveals a small amount oil had spread the automatic wheels. See the darker streaks on these wheels.
The dial is removed
The dial is removed revealing the calendar mechanism.

 

Calendar mechanism is removed
The calendar mechanism is removed
The automatic mechanism is removed
The automatic mechanism is removed. This will be further striped later.
Removing the oscillating weight from the automatic mechanism
Removing the oscillating weight from the automatic mechanism
Now to remove the mainspring, train of wheels and the escapement
Now to remove the mainspring, train of wheels and the escapement
Here is a closer look at the co-axial escapement.
Here is a closer look at the co-axial escapement.
This is the balance wheel
This is the balance wheel
Just the train of wheels now in place.
Just the train of wheels now in place.
With all the wheels removed we need to remove the winding/hand setting mechanism (Keyless work)
With all the wheels removed we need to remove the winding/hand setting mechanism (Keyless work)
And with that the watch is now completely stripped and ready for the cleaning machine.
And with that the watch is now completely stripped and ready for the cleaning machine.
Cleaned, lubricated, regulated and placed back in the case ready for testing.
Cleaned, lubricated, regulated and placed back in the case ready for testing.

 

 

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