Co-axial escapement

The English watchmaker George Daniels developed in the 1970s, the so-called Co-Axial escapement, which got its name from two on a wave superimposed gear wheels. The goal is to take advantage of the lever escapement - secure self-starting, vibration proof and no danger of double triggering - with which the chronometer escapement - to connect - low-friction drive and largely independent of lubrication. The result is an inhibition with four pallets, two of which are resting on an anchor pallets. The others are the pulse pallets, one of which is located on an armature and the other on the balance. The pulse is not issued as the anchor escapement on an inclined plane, but rather smoothly, as in the chronometer escapement.

On the basis of a high quality transition model pros and cons were discussed. The significantly lower, but not total independence from the lubrication is achieved through efficiency losses, because the complicated function requires more dead way of escape wheel. Since this is only eight teeth may have, another cog in the machine is required. Similar to the chronometer escapement is a risk of damage in careless disassembly. The Omega company started in 1999 with the manufacture of watches by this system.

Source

• Co-Axial escapement of Omega