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  • Technical
  • Tourbillon
  • Non-classified

Chronomètre FB 1R.6-1

Ferdinand Berthoud 2018

Men's

This is the second watch from Ferdinand Berthoud, following on from the Chronomètre FB 1 in its different versions. The "R" in its name stands for regulator, in reference to the regulator-style display formed by the hours on a disc in an aperture at 2 o'Clock, minutes on a subdial at 12 o'clock, and seconds by a large central hand. The 10 o'clock position is reserved for an original power-reserve indicator, visible on the back: a truncated cone moves up and down an arbour that is connected to the barrel. A feeler spindle via a system of levers transfers state-of-wind information to be displayed by a hand on the dial. A tourbillon and a fusee-and-chain mechanism complete this sophisticated movement.

Function

  • Function
    Hours, Minutes, Seconds

Complications

  • Regulating mechanism
    Constant-force escapement
    Fusee mechanism
    Tourbillon
  • Display
    Power-reserve indicator
  • Other complication
    See presentation text

Movement

  • Movement name
    FB-T.FC.R
  • Energy supply
    Manual-winding
  • N° of jewels
    49
  • Power reserve
    53 hours
  • Vibrations
    21600
  • Form
    Round
  • Height/thickness
    9.89 mm
  • Diameter
    35.50 mm

Case

  • Form
    Other
  • Material
    Hardened steel
  • Height/thickness
    13.95 mm
  • Maximum clear dimensions
    44.00 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Material
    Nickel silver
  • Colour
    Rhodium-plated black

Strap

  • Material
    Alligator
  • Colour
    Shiny black
  • Fastening
    Folding clasp

Characteristics

  • Certifications
    COSC
  • Limited/numbered edition
    20