Ferdinand Berthoud Chronomètre FB 1R

Ferdinand Berthoud Chronomètre FB 1R.6-1
© Ferdinand Berthoud

Ferdinand Berthoud Chronomètre FB 1R.6-1 back
© Ferdinand Berthoud

The Chronomètre FB 1R is a wristwatch by Ferdinand Berthoud.

Presented in 2018 at the SIHH, the Chronomètre FB 1R pays tribute to the genius of watchmaker Ferdinand Berthoud. Like the previous editions of the Chronomètre FB 1, its movement is equipped with horological complications inspired by the scientific instruments represented by Ferdinand Berthoud’s marine chronometers. The appearance of the Chronomètre Ferdinand Berthoud FB 1R.6-1 takes its cues from the Marine Chronometer No. 7, produced in 1767.

The amazingly unusual dial design shows a regulator-type display.

Reference:

FB 1R.5 Patinated bronze, nickel silver dial
FB 1R.6-1 Steel

Movement:

Manual winding manufacture movement FB-T.FC.R, 21.600 A/h
Fusée and chain tourbillon (constant force)
COSC-certified chronometer
1,158 (including the chain with 790 parts)
49 jewels
Power reserve 53 hours

Case:

Ultra-resistant carburised stainless steel
Ø 44 mm, H 13.95 mm
Domed sapphire crystal with anti-glare treatment on both sides
Screw-in caseback with sapphire crystal
Two transparent sapphire crystal portholes
Waterproof to 3 bar

Dial:

Regulator dial plate in black rhodium-plated nickel silver, satin-brushed by hand

Functions:

Hours at 2 h
Pointer-type minute display at 12 h
Central seconds
Power reserve at 10 h

Bracelet:

Alligator leather strap, hand-sewn
Titanium folding clasp or tang-type buckle

Limitation:

FB 1R.6-1: 20 pieces, numbered