Tourbillon with Three Flying Bridges

• Case: rose gold
• Size: 44 mm x 15.35 mm
• Movement: self-winding mechanical movement, Calibre GP09400-1273
• Function: hours and minutes, small seconds on the tourbillon, tourbillon
• Power Reserve: approximately 60 hours
• Water Resistance: 30 m
• Dial: open
• Caseback: sapphire crystal ‘box’
• Strap/Bracelet: fabric with pink gold triple-folding buckle

The Tourbillon with Three Flying Bridges draws on the talents of the Maison’s craftspeople and watchmakers.  The skeletonized torso of this model masterfully plays with three dimensional shapes, conferring an aerial perspective of the eponymous three gold bridges that seemingly float in a light-filled case.

Crafted in the company’s Grand Complications Atelier and inspired by the famous pocket watch of 1889, this contemporary creation featured an ingenious movement construction. Eschewing a conventional main plate, the eponymous bridges not only support the geartrain, barrel and tourbillon, but also provide the essential structural integrity for the remainder of the movement. Appearing to float mid-air, the bridges are braced by neat, open worked plinths that project from the interior wall of the case.

This unusual construction required the Maison to affix the indexes to the flange which in turn is attached to the case. The tourbillon is positioned to the base of the dial. Its cage is lyre-shaped, a historical design dating back to the 19th century, albeit in this instance it is made of ultra-modern Grade 5 titanium. A blued hand on the cage rotates 360° every minute and serves as a small seconds display. The tourbillon cage is comprised of 79 components and weighs a mere 0.25 grams. This remarkably low mass mitigates energy consumption, thereby contributing to the movement’s impressive power-reserve of 60 hours (minimum).