This Limited Edition F. P. Journe Ruthenium Chronomtre Rsonance* watch is one of only ninety-nine pieces, created between 2001 and 2003. Each of the series is individually numbered (XX/99-01R) and cased in platinum. The pairing of a quintessential F.P. Journe complication with a rare and attractive metal like ruthenium makes this watch both mechanically and visually impressive.

TheChronomtre Rsonancemovementin this example is comprised of two balance wheels, inspired by a natural phenomenon called resonance.The term 'resonance' was coined by Journe, likening the phenomenon to that of a stringed musical instrument, which resonates. He explains the principles behind this complication: 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.

Journe had previously attempted to put this complication into a pocket watch in 1983, but he didn't succeed. 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.AsRexhep Rexhepi, an independent watchmaker who previously worked for Journe, put it,

When I think of Francois-Paul Journe, I think of the Resonance.

At 40mm, the watch is further distinguished by its ruthenium-coated dial. The charcoal grey surface is delicately textured, giving the dial a mixture of tones and added depth. The ruthenium plating reflects light differently, transitioning to a smokey, silver hue from different angles. Two separate silver guilloch dials show the hours and minutes, withthe two opposing dials capable of displaying multiple time zones. The words Invenit et Fecit are inscribed belowthe two subsidiary seconds(Latin for Invented and Made or more literally'Designed and built by F.P. Journe') in classicF.P. Journestyle - a nod to signing conventions of a century ago. A power reserve is shown at 12 o'clock, and is reversed, beginning at 40 and moving toward 0. This was a deliberate choice on Journe's part, as he borrowed this idea from marine chronometer clocks, with the power reserve showing how many hours have passed since the watch was wound instead of how many hours are left.

This manual-winding,F.P. Journecaliber1499movement is ruthenium-coated brass, withCtes de Genve,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 oclock adjusts both time-zones, with a crown at 4 oclock to synchronise the seconds hands.

In 2004,Journebegan manufacturing movements from 18-carat gold; however - interestingly - it isFranois-Paul Journes earliest brass-movement pieces thatcommand more interest from collectors. Its estimated that only 2,000 brass-movement examples were produced, across all lines, and were manufactured exclusively between 2001 and circa 2004. These earlierF. P Journepieces are highly sought-after, owing to their placement within the brands history and rarity. TheRuthenium Seriesonly enhances these qualities, using the light-absorbing dark metal to create a unique aesthetic.

Closer look

Condition

The case has been very well preserved, with minor signs of very light wear, more specifically a small ding on the lower left lug, and was left untouched during the service. The ruthenium coating on the dial shows light tarnishing around the edges of the dial, whereas the movement show no visible signs of tarnishing. The set includes all of the materials which accompany the Ruthenium Collection, including the original box and accessories. The original stamped paperwork is also included.

Servicing & warranty

This Ruthenium Chronomtre Rsonance is in excellent condition, having returned from a service with the manufacturer in 2020. The watch comes with a lifetime guarantee for authenticity from A Collected Man.