F. P. Journe
Chronomètre à Résonance | RT | rose gold


Regular price

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F. P. Journe
Chronomètre à Résonance | RT | rose gold


Regular price

This 40mm, platinum Chronomètre à Résonance RT (or Résonance Trios) is one of the third series of Resonance watches produced by F. P. Journe. First introduced in 1999, the Chronomètre à Résonance was only the second serial production watch by François-Paul Journe. It has since become synonymous with the watchmaker, as one of his most ingenious and recognised inventions. 

The ref. RT marked the 10th anniversary of the Chronomètre à Résonance, reintroducing the model with a newly designed dial layout. Using the Résonance’s independent time-setting capability, the ref. RT incorporates a 24-hour disc alongside the traditional time display, to show multiple time zones. Having been nicknamed the "parking meter" amongst collectors, the result is perhaps F.P. Journe’s most visually distinctive Résonance wristwatch, alongside the newly released ref. RQ. The ref. RT was the first of the Résonance family to win an award at the Grand Prix d’Horlogerie (GPHG) when it won the Best Complication Watch Prize in 2010. The reason no others before took home this award was because the GPHG was only founded in 2001, a couple of years after the first generation Résonance was released.


The Chronomètre à Résonance RT movement in this example is comprised of two balance wheels, inspired by a natural phenomenon called resonance. The complication is explained by François-Paul thusly;

“In a watch, never mind which, there is energy which dissipates. When you listen to a watch, the tic-tac of the balance is dissipating energy. In a resonance chronometer, there are two balance wheels which are placed sufficiently close to one another, and the dissipated energy of each is caught by the other, leading to a unique type of frequency regulation.”

The discovery is said to have been made in 1665, by Dutch mathematician Christiaan Hygens, who reported that two pendulum clocks, hanging from the same mounting beam, would beat in such perfect duplicity, that the sound of the escapements were indistinguishable from one another. The concept was later researched and developed by Antide Janvier, to be refined by Abraham-Louis Breguet. Early sceptics suggested that air-resistance played a role, however, extensive testing by Breguet (the first to test a dual-train resonance watch with a double-balance system, placing rings around the balance wheels, to negate the effects of air), and more recently by François-Paul, proved this to be untrue.

Whilst the concept was long established, the term ‘resonance’ was in fact coined by Monsieur Journe himself, likening the phenomenon to that of a stringed musical instrument, which resonates. Initially, unsuccessfully attempted in a pocket watch in 1983, Journe was able to hone the phenomenon of acoustic resonance in a wristwatch some fifteen years later, with the prototypes displayed at his first Basel Fair in 1999. Ever since, the model has gained a cult status among collectors. As Rexhep Rexhepi, an independent watchmaker who previously worked for Journe, put it, “When I think of Francois-Paul Journe, I think of the Resonance.”


The Chronomètre à Résonance is quintessentially an F.P Journe, in both its design language and movement. Housed in a 40mm rose gold case, the Chronomètre à Résonance RT represents a modern take on Journe's original, inspired design. The white-gold dial is delicately textured, and displays two separate silver dials for the hours and minutes (the two opposing dials capable of displaying multiple time zones). On the left side, a 24-hour display shows the second time zone, highlighting the hours and minutes in contrasting colours, on separate discs.

Interestingly, the power reserve indicator of this Chronomètre à Résonance is reversed from the norm, beginning at 40 and progressing to 0. This was deliberate by F.P. Journe, who borrowed this from marine chronometer clocks. The reasoning behind this lies in the idea that the power reserve indicator of the Chronomètre à Résonance is not meant to display how many hours are left, but instead how many hours have passed since the watch was wound.


This manual-winding, F.P. Journe caliber 1499.3 movement is 18-carat rose-gold, with Côtes de Genève, constructed with 36 jewels. It features a resonance-controlled, twin independent gear-train, straight-line lever escapement, monometallic 4-arm balance with 4 timing weights, self-compensating free-sprung flat balance spring, oscillating at a rate of 21,600 vibrations per hour. Further to this, a winding crown at 12 o’clock adjusts both time-zones, with a crown at 4 o’clock to synchronise the seconds’ hands.


This F.P. Journe Chronomètre à Résonance RT comes with an original F.P Journe alligator strap, a bespoke Helsinki nubuck leather strap with curved ends (measuring 20 x 19mm) and corresponding rose gold buckle. It's also accompanied the original inner and outer boxes, and stamped guarantee card from F.P. Journe.

Viewings can be arranged in Central London by appointment.

Brand: F. P. Journe
Model: Chronomètre à Résonance Second Series RT
Movement: mechanical manual-winding Cal. 1499.3
Functions: date, duel hours, minutes, sub-seconds
Features: twin independent movement, guilloché hours/mins, 24-hour digital indicator, display-back, power-reserve display
Case: 40mm rose gold
Crystal: sapphire front, back
Strap: bespoke Helsinki grained leather strap; F. P Journe alligator strap with rose gold buckle
Lug/buckle width: 20/19mm
Year: 2020 (sold)
Box & papers: inner and outer boxes, original guarantee card
This rose gold F.P. Journe Chronomètre à Résonance RT is in excellent condition. The case shows virtually no signs of wear, with only very light superficial marks visible. It's guaranteed for authenticity, and comes with a two-year warranty from A Collected Man.

All of our pre-owned watches have undergone thorough mechanical inspections, including being ultrasonically cleaned, serviced and resealed if appropriate and tested for at least four days, to ensure they meet our highest timekeeping standards. Our pre-owned and vintage watches, unless stated otherwise, are covered by a full or a limited twenty-four month warranty. For example, due to their age, some vintage watches should not be subjected to the same conditions as when they were new. Please see our Terms & Conditions for further information. 

All of our new watches are covered by the warranty from the original manufacturer. Please contact us for further information.

We offer complimentary worldwide delivery on our watches. If ordering from overseas, delivery will depend on the value of the timepiece and the destination. All import taxes and duties are the responsibility of the buyer.

If ordering from the UK before 1 PM, your watch will be sent the same working day. The courier will depend on the value of the watch, with all watches delivered the next working day.

Please note that pre-owned goods (in the United Kingdom) are subject to a marginal rate of VAT, which can not be reclaimed. For further information, please see here

You can cancel your order without giving any reason, within 14 days from the day the watch has been delivered to you.

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