Girard-Perregaux Tourbillon with Three Flying Bridges

The Girard-Perregaux Tourbillon with Three Flying Bridges, reference 99296-53-3559-5CC, has a 44 mm white gold case, 15.35 mm thick. A tourbillon with small seconds is visible alongside three black-tinted bridges and a white gold ring with blue PVD-treated suspended indexes. Self-winding calibre GP09400 contains 27 jewels and operates at 21,600 vibrations per hour (3 Hz), with a power reserve of 60 hours and a white gold micro-rotor. The skeletonised movement's bridges act as the main plate. A black rubber strap with a fabric effect has a white gold triple folding clasp. Production is limited to 8 pieces, and the case is rated to 30 metres. Arcing sapphire box crystals form the front glass and display back.