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  • Ferdinand Berthoud

    Chronomètre FB 1.2

    Reference# Chronomètre FB 1.2
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    • Details
    • Description
    • Limited Edition: 50 pieces
    • Case: 18-karat rose gold
    • Size: 44mm
    • Movement: hand-wound manufacture caliber FB.T.FC
    • Function: tourbillon, power reserve, suspended fusée and chain constant-force transmission regulation
    • Power Reserve: approximately 53 hours
    • Water Resistance: 30m
    • Dial: black, vertical satin-finish
    • Caseback: sapphire crystal
    • Strap/Bracelet: hand-sewn alligator leather

    The Chronomètre Ferdinand Berthoud FB 1 in rose gold ideally combines the refinement of gold with the high-tech nature of black ceramic. The resolutely contemporary and uncompromising aesthetic of this exceptional timepiece asserts its personality. Particularly pure and uncluttered, like the marine clocks created by the illustrious master watchmaker, the time measurement display recalls the primary function of a chronometer: precision.

    This first mechanical hand-wound movement to emerge from Chronométrie Ferdinand Berthoud in Fleurier is a tribute piece inspired by the exceptional work of the founding father and transcends existing standards in the field of haute horlogerie.

    Featuring a striking structure and driving exceptionally readable indications, caliber FB-T.FC is equipped with an exclusive constant-force regulation system with suspended fusée and chain transmission, equipped with a differential winding system. It also has a highly distinctive power-reserve mechanism.

    A tourbillon with central seconds hand guarantee the optimal timing adjustment of the movement, whose precision and rate accuracy is certified by the Swiss Official Chronometer Testing Institute.

    The original fusée and chain mechanism developed by the engineers of Chronométrie Ferdinand Berthoud occupies an exceptionally small space within the movement thanks to its “suspended” construction. The barrel and fusée of caliber FB-T.FC are linked by a chain comprising no less than 474 steel links, including more than 300 pins measuring barely 0.30 mm in diameter and all hand-assembled. The chain measures a total 28 cm long and the maximum tension exercised upon it once in place amounts to three kilos.

    When the mainspring is associated with a fusée, the barrel drum turns in one direction when the spring winds down and in the opposite direction when it is wound up, thus causing the chain to wrap around the drum. A distinctive feature of caliber FB-T.FC lies in the fact that its fusée mechanism has been equipped with an unusually designed differential gear.

    The case of the Chronomètre Ferdinand Berthoud FB 1 is built according to a distinctive architecture inspired both by the Marine Clocks of Ferdinand Berthoud and by their gimbal suspension system typical of onboard chronometers.

    A watertight central container houses the movement, while 18-karat gold octagonal-shaped decorative elements screwed to the case middle endow this watch with a resolutely masculine character. Four lateral glare-proofed sapphire portholes provide a chance to admire the main organs of the movement including the constant-force module and the power-reserve mechanism. Meanwhile, the sapphire crystal caseback offers a spectacular panoramic view of the tourbillon as well as the fusée and chain mechanism.

    The understated nature of its design and finishing ensures excellent legibility of the functions displayed, thereby respecting the primary purpose of an authentic chronometer.

    Ferdinand-Berthoud
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