Girard-Perregaux Tourbillon with Three Flying Bridges

The Girard-Perregaux Tourbillon with Three Flying Bridges, reference 99296-52-3434-5CC, has a pink gold case measuring 44 mm across and 15.35 mm thick. A tourbillon with small seconds has a lyre-shaped titanium cage topped with a blued hand. Self-winding calibre GP09400-1273 contains 27 jewels and has a power reserve of 60 hours. The skeletonised movement operates at 21,600 vibrations per hour (3 Hz), with a white gold micro-rotor and three bridges that act as the main plate. Sapphire front glass and a sapphire box display back reveal the construction, while the case is rated to 30 metres. A black rubber strap with a fabric effect has a pink gold triple folding clasp. Openworked plinths projecting from the case's interior support the bridges.