This regulator-type chronometer movement with tourbillon and fusee-and-chain transmission is the result of comprehensive technical and aesthetic development and is inspired by Marine Clock No. 8, produced by the master-watchmaker in Paris in 1768. The dial in black PVD nickel silver is decorated with vertical satin-brushed and sandblasted finishes and offers three openings: the hours at 2 o'clock, the minutes at 12 o’clock and the power reserve at 10 o'clock. The production of this movement will be strictly limited to 20 in all where the choice of watch exterior will be left to the collector. The FB 1RS.6 with an octagonal case in carburised stainless steel is one of the variations offered by the Manufacture.
The case of the Chronomètre FB 1RS.6 is made of a new material: carburised stainless steel, a steel whose molecular structure has been reinforced by a thermochemical process. Its exceptional hardness of 1,200 vickers on the surface makes it extremely resistant, particularly to corrosion.
The FB-T.FC-RS Calibre is the first skeleton movement produced by the Manufacture. Nearly a year of trials was needed to achieve this level of finishing, enabling the complexity of this new movement on the dial side to be fully admired.
The main plate has been entirely designed to ensure an admirable view of the choreography performed by the imposing tourbillon carriage appearing on the dial side. Many components feature black PVD coating, alternating with polished, matt, vertical satin-brushed and sandblasted finishes.
Inspired by the Marine Clock No. 7 that Ferdinand Berthoud produced in 1767, the construction and the regulator-type display of the Chronomètre FB 1R.6-1 overturn traditions.
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