The Minute Repeater Tourbillon with Bridges was born from the first union between a great complication and the symbolic arrow-shaped bridges. For the first time, the repeater mechanism, gongs and hammers are visible from the dial in addition to the tourbillon cage. The symmetry of the GP09500 caliber is a great challenge as this type of construction implies that the main watchmaker works on the minute repeater mechanism without having the hammers in place.