pull out piece lever
FBN Calibre 916.01
- Manual winding mechanical movement
- Diameter: 14’’’ (31.60 mm)
- Thickness: 5.57 mm
- Frequency: 3Hz (21,600 vibrations/hour)
- Number of jewels: 23
- Power reserve: 80 hours
Trompe l’oeil groove creating the impression that the two bridges are in fact one and ensuring the rigidity of the overall construction.
Bridge contours inspired by pocket-watch movements.
Manual-winding system with “long-blade” ratchet pawl – a nod to the mechanical sound of historical watches – featuring a smooth-polished finish.
Smooth-polished tourbillon bridge
Decorated in the finest watchmaking tradition with 30 interior angles hand-crafted with a burin, Côtes de Genève motif and circular graining.
The tourbillon system compensates for the variations in rate in all vertical positions. The two inverted balance-springs neutralise the lateral displacement of the balance axis. LAURENT FERRIER associates these two devices for the very first time and thereby combines their advantages to guarantee excellent rating precision.
Swiss lever escapement with a phosphorous nickel escape-wheel designed to improve the amplitude and consequently the rating precision.
Spring-free winding-stem pull-out piece lever