The F.P.Journe Chronomètre à Résonance represents emblematic timepiece significantly marking research on precision made by master watchmaker François-Paul Journe. This unique watch represents one of wildest challenges ever in field of mechanical watch, featuring natural phenomenon of resonance through exceptional mechanism with twin balances beating in perfect synchronization revolutionizing classic standards of watchmaking by offering unequalled precision for wristwatch. The Black Label edition reference RT produced exclusively in 2019 for existing F.P.Journe owners through boutiques elevates remarkable timepiece through platinum construction and distinguished blackened gold dial with whitened guilloché silver subdials. The 2019 RT version presents third generation Résonance configuration featuring double analog display: left subdial at 9 o'clock with analog 24-hour indication (hour hand rotating once per 24 hours, Arabic numerals 6-12-18-24) precisely defining hours of day and those of night; right subdial at 3 o'clock with analog 12-hour indication in guilloché silver indicating local time but can also be used for same time zone. Physical phenomenon known as resonance frequently part of daily lives—when looking for program on radio it crackles until chosen wavelengths meet those of transmitter, only then harmonizing to begin resonating together. Intuition that energy dissipated without being lost goes back to 18th century and research performed by great chemist Lavoisier stating "Nothing is lost nothing is created everything is transformed." With invention of pendulum watchmakers noticed their beat often interfered with environment, pendulum clock stopping of own accord when pendulum came into resonance with driving-weight suspended from cords. After theories of Christiaan Huygens came Antide Janvier born 1751 in St Claude France building two complete movements with two precision escapements placed close to each other ensuring two pendulums hanging from same construction. Pendulums recovered energy dissipated by each other beginning to beat together thus entering resonance, maintained by this wave and protected from outside vibrations considerably enhancing precision. About 1780 Antide Janvier built two precision regulators—one preserved at Paul Dupuy Museum Toulouse, second in private collection Montres Journe SA Geneva, third desk-top regulator kept in Patek Philippe Museum Geneva. Thirty years later Abraham-Louis Breguet built resonance regulator for Louis XVIII King of France now at Musée des Arts et Métiers Paris, second for King of England Georges III housed in Buckingham Palace, plus pocket-watch based on same principle for each illustrious figure. Advantages of phenomenon in terms of precision led Journe to pursue personal research and attempts which after fifteen years enabled adaptation to wristwatch, Chronomètre à Résonance. Resonance system particularly well suited to various wrist movements subjecting watch mechanisms to repeated jarring detrimental to smooth running. Watch remains nearly 20 years after creation most precise mechanical watch of contemporary watchmaking, profoundly poetic depth in twin balances recovering dissipated energy beating together in resonance protected from outside vibrations.
The 40mm diameter case fabricates entirely from 950 platinum employing two-piece construction with entirely polished surfaces. Case measures 9.1mm overall height accommodating Caliber 1499.3's 4.50mm movement height. Round form follows classic chronometer geometry, polished bezel flowing into mid-case, downturned lugs improving wrist conformity, screw-down exhibition caseback revealing spectacular 18k rose gold movement through sapphire crystal. Crown positions at 12 o'clock with two positions: clockwise rotation for left dial at 9 o'clock, anticlockwise rotation for right dial at 3 o'clock. Reset-to-zero button positions at 4 o'clock enabling simultaneous resetting of both seconds hands to zero position. Sapphire crystals front and back provide movement visibility.
The dial employs blackened 18-carat gold base with whitened guilloché silver subdials creating dramatic high-contrast display. Left subdial at 9 o'clock presents analog 24-hour indication with hour hand completing one full rotation per 24 hours, Arabic numerals marking 6-12-18-24 positions creating clear day/night differentiation, small seconds at 6 o'clock position within subdial. Right subdial at 3 o'clock presents analog 12-hour indication in whitened guilloché silver with hour and minute hands, Arabic numerals at 12-3-6-9 positions, small seconds at 6 o'clock position within subdial creating symmetric composition with left dial. Power reserve indicator positions at 11 o'clock upper dial, semicircular scale marked 0 to 40 hours with blued steel hand sweeping arc providing visual indication of remaining power reserve. Central area features applied Arabic numerals establishing dial architecture. Blued steel hands equip left subdial while rhodium-plated steel hands equip right subdial. Brand signature "F.P.JOURNE Invenit et Fecit" inscribes lower dial establishing Résonance identity. The composition creates comprehensive dual-time display with both subdials operating independently yet synchronized through resonance phenomenon, each subdial featuring own small seconds enabling visual confirmation of resonance coupling when both seconds hands beat in perfect synchronization.
Caliber 1499.3 manual-winding movement fabricated entirely from 18k rose gold represents third generation Résonance incorporating pinions to adjust distance between twin balances optimizing resonance coupling. Movement comprises 299 components without dial, 336 components cased with strap, measuring 32.60mm overall diameter, 32.0mm casing-up diameter, 4.50mm overall height. The caliber employs two independent linear escapements each with 15 teeth, two independent balances each with four adjustable inertia weights, two flat micro-flamed Anachron balance springs providing paramagnetic properties, two mobile stud carriers, two free-sprung balance springs laser-pinned to Nivatronic collets, pinned GE studs. Both balances vibrate 21,600 vph maintaining traditional 3 Hz frequency. Balance inertia measures 10.10 mg/cm² each with 52° angle of lift. Amplitude measures remarkable 320° dial-up at 0 hours dropping to 270° dial-up at 24 hours, healthy readings demonstrating efficient energy transmission maintaining chronometric performance throughout power reserve. Twin balances positioned close together enabling resonance coupling through which balances recover energy dissipated by each other beginning to beat together in synchronization. Maintained by resonance wave balances become protected from outside vibrations considerably enhancing precision particularly suited to various wrist movements subjecting watch mechanisms to repeated jarring. Caliber 1499.3 refinement incorporates pinions to adjust distance between twin balances optimizing resonance coupling strength. Manual winding requires 27 turns of crown for full wind providing 40 hours plus 2 hours power reserve. Two-position crown at 12 o'clock enables independent time setting: clockwise rotation adjusts left dial 24-hour display, anticlockwise rotation adjusts right dial 12-hour display. Reset-to-zero button at 4 o'clock simultaneously resets both small seconds hands to zero position enabling synchronization. High-quality finishing includes partial circular graining on 18k rose gold baseplate, screw heads polished and beveled with chamfered slots, pegs with polished rounded ends creating movement of exceptional beauty visible through sapphire caseback. Patent EP 1 760 544 A1 protects resonance innovations.
The Chronomètre à Résonance Black Label Ref. RT 2019 distinguishes through world premiere application of natural acoustic resonance phenomenon to wristwatch without mechanical transmission, twin independent balances each with own linear escapement recovering dissipated energy beating together in perfect synchronization protected from outside vibrations, fifteen years development from 1983 pocket-watch through 2000 wristwatch world premiere representing most precise mechanical watch of contemporary watchmaking, 2019 RT third generation featuring double analog display with left subdial analog 24-hour indication (6-12-18-24) defining day/night hours and right subdial analog 12-hour indication in guilloché silver, Caliber 1499.3 incorporating pinions to adjust distance between twin balances optimizing resonance coupling, entirely 18k rose gold manual-winding movement 32.60mm x 4.50mm with 299 components, two independent linear escapements 15-tooth, two independent balances each four inertia weights, two flat micro-flamed Anachron balance springs laser-pinned to Nivatronic collets, remarkable 320° amplitude at 0h maintaining 270° at 24h demonstrating resonance effectiveness, 21,600 vph, 40-hour power reserve, manual winding 27 crown turns, two-position crown at 12 o'clock clockwise for left dial anticlockwise for right dial, reset-to-zero button at 4 o'clock simultaneously resetting both seconds, produced exclusively 2019 for existing owners, 40mm x 9.1mm platinum case.
The watch mounts on black alligator leather strap with large square scales, hand-stitched construction, integrated into platinum deployment clasp or pin buckle.
The Chronomètre à Résonance Black Label Ref. RT 2019 represents F.P.Journe's resonance achievement synthesizing unprecedented precision engineering with platinum construction elevating sophisticated complication, Black Label exclusivity rewarding brand loyalty, natural resonance phenomenon revolutionizing mechanical watchmaking through twin balances recovering dissipated energy beating in synchronization protected from outside vibrations, fifteen years development culminating in most precise mechanical watch of contemporary watchmaking remaining nearly 20 years after creation, third generation 2019 RT featuring double analog display distinguishing from earlier RN digital/analog version and later parking meter retrograde version, Caliber 1499.3 entirely 18k rose gold incorporating pinions optimizing resonance coupling, remarkable amplitude maintaining 320° at 0h dropping only to 270° at 24h demonstrating resonance effectiveness, historical lineage from Christiaan Huygens through Antide Janvier's 1780 precision regulators to Abraham-Louis Breguet's regulators for Louis XVIII and Georges III, representing profoundly poetic depth in physical phenomenon creating perfect synchronization.
