The semi-skeletonised dial of this Girard-Perregaux wristwatch allows for full appreciation of the concentric cages making up the bi-axial tourbillon. The incredible piece will be offered in #Geneva tomorrow as part of our Important Watches sale #SothebysWatches #SothebysGeneva #girardperregaux #girardperregauxwatch #girardperregauxwatches #tourbillon