One component replaces a familiar assembly
A flexible silicon component performs the regulator and pallet-fork functions. According to Frédérique Constant, it replaces 26 components of a conventional assembly. Two small adjusting weights tune its operation—this design has its own method of regulation.
Where the 40 Hz comes from
The oscillator makes 40 complete oscillations per second, or 288,000 vibrations per hour. The gear train had to be adapted to that rhythm: four wheels sit between the barrel and escape-wheel pinion. The stated reserve is 80 hours with this construction.
Frédérique Constant and Flexous
Monolithic was developed with Flexous. Frédérique Constant also notes patented solutions licensed from LVMH. The brand developed its own FC-810 base calibre for the unusual regulator, changing the movement’s overall concept.
Why it is interesting
The FC-810’s most captivating detail is visible from the front: flexible silicon working in an open aperture. A glance shows how different this regulator is from a conventional balance.
Things to consider
A 40 Hz frequency cannot tell you how many seconds the watch will gain or lose each day. The adjustment of a particular watch and servicing arrangements for its unusual regulator matter when buying.