Chronomètre FB 2RES.1-1



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In 2020, Chronométrie Ferdinand Berthoud unveiled its second collection, the Chronomètre FB 2RE. This timepiece marked a real turning point for the Maison: the first round case, the first display with three central hands; and above all the first movement with a double regulation system combining fusee-and-chain transmission with a one-second “remontoir d’égalité”. This calibre, which has won awards for its precision timekeeping performance, now reveals more of how it operates through the customisable bridges and mainplate of the Chronomètre FB RES.

The FB 2RES.1-1 equipped with a round case in 18-carat white gold and a champagne-coloured satin-finish dial is one of the variations offered by the manufacture.




At the heart of this timepiece beats the Calibre FB-RES.FC, regulated by fusee-and-chain transmission and a one-second remontoire. The purpose of this full-fledged chronometric complication is to even out the energy coming from the barrel and transmitted to the escapement. The device relies on a spring positioned between the two organs. It temporarily stores a small amount of energy, which is then delivered to the balance. The charge/discharge frequency of this buffer energy is very short: one second.


The construction with three bridges converging towards the dial centre is directly inspired by a skeletonised table clock made by Ferdinand Berthoud circa 1775. The similarity does not end there, as that clock displaying the hours, minutes, seconds, age of the Moon, calendar and zodiac signs was also equipped with a “remontoir d’égalité”.


Chaque roue, pont, vis, est intégralement décoré à la main. Un travail de finition manuelle hors norme a été déployé pour révéler la beauté de chacun des composants. Mis bout à bout, tous les angles de roues et de leur pont, ainsi que ceux révélés au cœur de la réserve de marche à 9 heures, représentent plus de deux mètres linéaires limés et polis à la main.


    • Material : Case in ethical 18-carat white gold
    • Case Type : Round case fitted with one glare-proofed sapphire crystal porthole at 10 o’clock
    • Diameter : 44 mm
    • Thickness : 14,30 mm
    • Water resistance : 30 m
    • Glass : Domed sapphire crystal glareproofed on both sides
    • Case-back : Fitted with a “chevee” sapphire crystal pane glare-proofed on both sides
    • Crown type : Dynamometric in 18-carat white gold with a black ceramic medallion
    • Limited edition of 38 movements
    • Calibre : FB-RES.FC
    • Type Of Movement : Constant force with fusee-and-chain transmission and a one-second remontoire device
    • Type Of Winding : Mechanical hand-wound
    • Diameter : 37.30 mm
    • Тhickness : 9,37 mm
    • Lines : 16 ½
    • Number of jewels : 58
    • Frequency : 18,000 vph (2,5Hz)
    • Power reserve : 50 hours
    • Number of components : 1200
    • Chain length : 285
    • Certification : Chronometer-certified by the COSC
Dial and Hands
    • Dial : Openworked nickel silver plate in champagne-toned satin-brushed
    • Circular satin-brushed inner bezel ring in champagne-toned
    • Facetted and skeletonised dagger-shaped hours, minutes and seconds hands in 18-carat gold with blue CVD treatment
    • Brass central sweep-seconds hand with blue CVD treatment
    • Arrow-shaped power reserve hand in 18-carat gold with blue CVD treatment
Functions and Display
    • Hours and minutes, deadbeat seconds, power reserve, time-setting with stop-seconds device on the balance
Strap and Buckle
    • Strap : Alligator leather
    • Buckle : Length-adjustable double-blade folding clasp or pin buckle

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