A demonstration of watchmaking mastery, the Tri-Axial Tourbillon presented by Girard-Perregaux at BaselWorld 2014 optimises the chronometric performance and showcases a captivating spectacle.
The cage and the drive systems, weighing just 1.24 grams, are made of steel with the support pillars in titanium or in rose gold. The balance, integrating 16 rose gold adjustment micro-screws beats at a frequency of 3 Hz, or 21,600 vibrations per hour. In order to provide the necessary interior volume for housing the tourbillon's triple cage, it was necessary to integrate a domed lens that rests against the sapphire crystal.
Not just a technical masterpiece, the tri-axial tourbillon system is also finely decorated and finished by hand with mirror-polished surfaces and perfect chamfering even on inward angles. The gear train is circular-grained and the sides are satin-brushed.
The 48 mm rose gold case is characterised by a large bevelled bezel in line with the design codes of Girard-Perregaux's Haute Horlogerie collection. A toric-shaped sapphire crystal is also integrated into the side of the case at 9 o'clock in order to show the rotation of the tourbillon from another angle.