WatchProSite|Market|Digest

Omega

The new 8500 CoAxial mvt. is a 3-layer design, where the impulse to the balance is...

 

provided separately from the connection between the intermediate wheel and the escape wheel.  In the 2500 mvt., a 2-layer design, these 2 functions are combined in one wheel; the coaxial pinion.  In the 8500 and the RS mvts., the separation of these functions provides a lower-friction delivery of power for better isochronism and smaller variations in amplitude with changes in position and mainspring tension.

  login to reply