The Chronomètre FB 3SPC draws its stylistic, technical, and aesthetic inspiration from a rare and exceptional creation: the No. 26 decimal watch, made in 1793 by Louis Berthoud™. The Calibre FB-SPC is based on a cylindrical balance spring — a rare watchmaking speciality. It is the only movement of its kind to meet the chronometric (precision timekeeping) criteria of the COSC, with ISO 3159 certification made possible solely through the meticulous adjustments performed by the Manufacture’s watchmakers.
Powered by a mechanical movement featuring a cylindrical balance-spring and chronometer-certified by the COSC, the Chronomètre FB 3SPC approaches the core theme of precision from a new angle. This collection takes its cue from the refined design of pocket watches from the early 19th century.