We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Avant-garde and timeless
Inspired by the Marine Chronometer No. 7 that Ferdinand Berthoud produced in 1767, the construction and the regulator-type display of the FERDINAND BERTHOUD FB 1R.6-1 chronometer overturn traditions. Composed of the rear side of the black rhodium-plated nickel silver regulator plate adorned with straight-grained lines, the dial features three openings: one for the hours (at 2 o’clock), another for the minutes (at 12 o’clock) and a third for the power reserve (at 10 o’clock). The FB-T.FC.R calibre, with its pillar-type architecture, features a direct-drive centre seconds tourbillon whose constant force is provided by a fusee-and-chain transmission mechanism incorporating a satellite differential gear and Malte Cross stopwork device. Continuing the tradition of precision inherited from Ferdinand Berthoud, this COSC-certified timepiece is available as a 20-piece limited edition in carburised steel.
Features



Chronomètre FB 1R.6-1 in details

Movement
- CALIBRE FB-T.FC.R
- Mechanical hand-wound movement
- Tourbillon with constant force device with fusee-and-chain transmission
- Diameter: 35.50 mm
- Thickness: 9.89 mm
- Lines: 15 ¾
- Number of jewels: 49
- Frequency: 21,600 vph (3 Hz)
- Power reserve: 53 hours
- Number or parts: 1158
- Chain length: 285 mm
- Chronometer-Certified by the COSC
Dial and hands
- Black rhodium-plated nickel silver regulator plate (dial) satin-brushed by hand
- 18-carat blued (CVD) gold minutes hand
- Steel fixed hour-marker with blue CVD coating
- Steel gold plated power-reserve hand
- Bronze gold plated seconds hand
Functions and display
- Hours display on a sapphire disc at 2 o'clock
- Minutes display at 12 o'clock
- Central seconds
- Power-reserve at 10 o'clock
Strap and buckle
- Hand-sewn rolled-edge alligator leather strap
- Titanium double-blade length-adjustable safety folding clasp

