This means less friction in the escapement, thus, longer periods between services.
The Co-Axial escapement organ is 13% larger and more efficient in the larger space availed to it. The barrels are DLC (Diamond-like carbon) coated inside to reduce friction and have been tested to simulate over 10 years of use with little wear effect to the DLC.Sixty manual rotations of the crown fully winds both mainsprings.The “hand-wound” barrel without slip clutch is wound first, then the “automatic” barrel with slip clutch.The Omega Caliber 2500 was developed by Omega in the 1990s.In 1993, Omega purchased the patent for the Co-Axial escapement from English master watchmaker and inventor George Daniels.
The Co-Axial Escapement was the first practical new mechanical watch escapement invented for mass market in 250 years.Omega began work to fit the Co-Axial Escapement to their Cal. The 1120 was basically a decorated version of the reliable Eta 2892-A2 movement.Omega spent the next six years developing and improving the movement to fit and utilize the larger escapement.In 1999 Omega released their first watches to the public with the Omega Cal. The Co-Axial escapement has two escape wheels mounted together to release the torque from the main spring.Because there are two wheels working in conjunction with added jewels, there is less friction.No longer are there two jewels sliding along the teeth of a single wheel, but now are three that just catch the edge of the teeth on two wheels.