#Omega Caliber 9300. In 2011, a few years after the introduction of its in-house-developed-and-produced Caliber 8500-family of movements, Omega introduced the Caliber 9300 chronograph movement, which was also entirely developed and manufactured in-house.
The Tri-Axial Tourbillon by Girard-Perregaux features a regulator on three separate axes. At its heart beats a traditional tourbillon. Its cage performs one rotation in one minute. It is integrated within a structure positioned on a second axis and performs a complete rotation in 30 seconds. Finally, both are inserted into a third system. The ensemble is placed on a third axis and performs one rotation in 2 minutes. The diameter of the ensemble comes to 13.78 mm.