The Collection of a European Nobleman

Geneva, May 11, 2008

LOT 12

Chronomètre à Résonance F.P. Journe, "Invenit et Fecit", "Chronomètre à Résonance", No. 068-05 R. Made in 2005. Very fine and rare, two time-zone, platinum chronometer wristwatch with resonancecontrolled twin independent movements, 40-hour power-reserve indication and a platinum F.P. Journe buckle. Accompanied by a certificate.

CHF 25,000 - 35,000

EUR 16,000 - 22,000 / USD 25,000 - 35,000

Sold: CHF 45,600

C. Two-body, solid, polished, transparent case back with 6 screws, top and side crowns engine-turned with "cordes de Marseille" pattern, sapphire crystals. D. Twin subsidiary guilloche silver dials with concentric radial Arabic numerals for hours and minutes and the off-set seconds secured to a brushed 18K white gold plate by 6 screws, up-anddown indication at 12. Blued steel Journe hands. M. Cal. F.P. Journe 1499-2 in 18K pink gold, fausses cotes decoration, twin independent complete trains set on a single plate, 36 jewels, twin straight-line lever escapements, twin beryllium 4-arm balances with 4 adjustable timing weights, shock absorbers, self-compensating free-sprung Invar balance springs. One of the escapements is mounted on a small platform pivoting around the second wheel by means of rack and pinion to adjust the distance between the 2 balances in order finding the most efficient position for resonance synchronization. The crown at 4 synchronizes both seconds hands. Dial and case signed. Diam. 40 mm. Thickness 9 mm.


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Grading System
Grade: AAA

Excellent

Case: 2

Very good

Movement: 2*

Very good

Overhaul recommended, at buyer's expense

Dial: 1-01

As new

HANDS Original

Notes

"Chronomètre à Résonance? An exceptional and unique creation in chronometer engineering, the Resonance System Chronometer exhibits the so-called phenomenon of resonance applied to horology. This unique wristwatch uses two entirely independent movements which operate harmoniously together for a precision greater than that of most mechanical wristwatches. The phenomenon of resonance is part of our daily lives, though we scarcely know it. When searching for a radio program, the radio crackles until the waves selected encounter those of the radio transmitter and become harmonized. Napoleon once forbade his troops to march over a bridge for fear of it collapsing from the effects of resonance! The phenomenon was observed as early as the 17th century by Christian Huygens, among others. The high-precision Constant Pressure regulators, still in use less than 40 years ago at the Observatory of Paris for the Bureau International de l'heure, and the radio broadcast time signal sent from the Eiffel Tower were placed in the Catacombs at a depth of 26 meters to eliminate fluctuations in temperature and atmospheric pressure. They were also kept in separate rooms to avoid any resonance interference. However, by the end of the 18th century, some of the most eminent clockmakers had found a way to take advantage of the phenomenon by synchronizing the pendulums of regulators fitted with two independent movements. When applied to a watch, resonance ensures exceptional reliability and precision. This is the only precision chronometer that is not affected by the wearer?s movements. Antiquorum sold the prototype of this watch in Geneva, on October 23, 1999, lot 75."Chronomètre à Résonance? An exceptional and unique creation in chronometer engineering, the Resonance System Chronometer exhibits the so-called phenomenon of resonance applied to horology. This unique wristwatch uses two entirely independent movements which operate harmoniously together for a precision greater than that of most mechanical wristwatches. The phenomenon of resonance is part of our daily lives, though we scarcely know it. When searching for a radio program, the radio crackles until the waves selected encounter those of the radio transmitter and become harmonized. Napoleon once forbade his troops to march over a bridge for fear of it collapsing from the effects of resonance! The phenomenon was observed as early as the 17th century by Christian Huygens, among others. The high-precision Constant Pressure regulators, still in use less than 40 years ago at the Observatory of Paris for the Bureau International de l'heure, and the radio broadcast time signal sent from the Eiffel Tower were placed in the Catacombs at a depth of 26 meters to eliminate fluctuations in temperature and atmospheric pressure. They were also kept in separate rooms to avoid any resonance interference. However, by the end of the 18th century, some of the most eminent clockmakers had found a way to take advantage of the phenomenon by synchronizing the pendulums of regulators fitted with two independent movements. When applied to a watch, resonance ensures exceptional reliability and precision. This is the only precision chronometer that is not affected by the wearer?s movements. Antiquorum sold the prototype of this watch in Geneva, on October 23, 1999, lot 75.