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F.P. Journe Rare Platinum Chronomètre à Résonance, circa 2005

$200,000.00

With its twin independent dials, no other reference is as instantly identifiable with the house of F.P. Journe as the Chronomètre à Résonance. First presented in 2000, the Résonance is the first and only wristwatch in the world that utilizes the physical natural resonance in the movement to self-regulate the watch without any mechanical transmission.

Resonance is a natural acoustic phenomenon. Any moving object transmits a vibration to its environment. When another body picks up this vibration at the same frequency, it absorbs its energy. In watchmaking it pertains to two independent movements set side by side that synchronize. Previously known as double pendulum or double balance. F.P. Journe calls the transmission “acoustical” energy. In addition to being precise, unique and beautiful, harnessing acoustic energy also eliminates the friction that is exists in self-regulating chronometers that rely on mechanical transmission.

The Résonance consists of two completely independent balances, powertrains, escapements and dials. Each of the two balances alternately serves as exciter and resonator. When the two balances are in movement, they enter into harmony and begin to beat naturally in opposition. In other words, the two balances support each other, delivering symbiotic inertia to their movement.

If there is an external disturbance to the movement, it may produce an effect that accelerates one balance within the Chronomètre à Résonance, while it slows down the other (or vice versa). Little by little, the two balances come back towards each other to find their point of harmony, thus eliminating the disturbance, and beating in perfect synchronicity.

There have been multiple versions of the Chronomètre à Résonance since 2000, with our model being one of the original early versions of the architecture with two mainspring barrels; identical twin 12-hour dials, and a platinum case that bears both French and Swiss hallmarks.  This watch was made shortly after the end of the brass movement production; therefore the bridges and plates are made of 18k rose gold.

The watch is in excellent collector condition, but is in need of routine service. Sold without the 6 month Warranty.

Case Diameter: 40mm

Case Thickness: 8.8 thick

Frequency: 21,600 vph

Jewels: 40

Power Reserve: 42 hours

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