" The choice was made to update the calibre 822 with a free sprung balance wheel as they are considered far superior in chronometric performance than raquetterie. It enables better adjusting and better performance all together.
As far as the removing of the shock protection it is actually thanks to the fact that the escapement wheel is now much lighter and we have also improved our oiling eliminating the need for shock protection. Removing them also in turn improve the chronometric performance notably in the vertical position.
All of this improvement are the fruit of long and careful study with our watchmakers all in the goal to improve client satisfaction. "'
Best,
Nicolas
PDS: I also asked if it was a recent change, I've been told that it was not the case and it's been several years they revisited the Cal 822.
Best,
Nicolas