JAEGER-LECOULTRE Duomètre. Three new mind-blowing executions presented at Watches and Wonders 2024

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JAEGER-LECOULTRE Duometre Chronograph Moon, Duometre Quantieme Lunaire and Duometre Heliotourbillon Perpetual. Before Jaeger-LeCoultre developed the Duometre concept, adding complications to a watch movement seemed irreconcilable with accurate timekeeping. That is because the fundamental requirement of precise timekeeping is that the power supply from the movement’s barrel to the escapement should be absolutely steady. However, in order to operate, a complication must draw on the power supply, which interrupts that steady flow and thus jeopardises precision. Thanks to this ingenious concept, the Manufacture Jaeger-LeCoultre added a new chapter to watchmaking history, opening the door to horological complexity and laying the foundation of an entire Duometre collection. Introduced in 2007, the patented Duometre mechanism features two barrels and two separate gear trains housed in a single calibre and linked to a single regulating organ. One gear train powers the time indications and the other drives all additional functions. By separating the power supply in this way, the Duometre mechanism guarantees an exceptionally high degree of operating accuracy. Jaeger-LeCoultre launched the ground-breaking Duometre mechanism in the form of a chronograph – the complication that epitomises the concept of precision. In 2024, the Maison applies the Duometre concept in an entirely new timepiece, marrying the high precision of a chronograph with the charm of a celestial complication. Powered by the new Calibre 391, the Duometre Chronograph Moon presents an intriguing contrast between the lightning-fast operation of the chronograph – which can time intervals as small as 1/6th of a second – and the slow rhythm of the moon as it passes through its cycle in 29.53 days, complemented by a Night and Day display. This year Jaeger-LeCoultre presents a new generation of Duometre timepieces – among them a reinterpretation of the Duometre Quantieme Lunaire (Moon Phase). The first Duometre piece to be offered in steel (!), its eye-catching blue dial, paired with a new case, lends a decidedly contemporary air to a timeless and distinctive design. The highlight of the new collection is the Duometre Heliotourbillon Perpetual. This watch is pushing the boundaries of inventiveness further than ever, the new Calibre 388 features an entirely new tourbillon construction: one that spins on three axes to create a ‘spinning top’ effect. The balance-wheel oscillates at a frequency of 4Hz (28,800 vph) to further enhance chronometry, Calibre 388 also incorporates a perpetual calendar with a grande date indication.

TECHNICAL CHARACTERISTICS

DUOMETRE CHRONOGRAPH MOON

Case: Pink Gold 750/1000 (18 carats) or 950 platinum
Dimensions: 42.5 mm diameter x 14.2 mm thick
Calibre: Manually wound Jaeger-LeCoultre Calibre 391
Functions: Hours, minutes, seconds; Chronograph with 12-hour counter, 60-minute counter, 1/6th-second counter and central chronograph seconds; Moon phases, Night & Day, two Power Reserve indicators
Power Reserve: 50 hours for each barrel
Front dial: Silver opaline (in pink gold case); Copper-coloured opaline (in platinum case)
Water resistance: 5 bar
Strap: Alligator with small scale alligator lining
Reference: Pink Gold: Q622252J / Platinum: Q622656J

DUOMETRE QUANTIEME LUNAIRE
Case: Steel
Dimensions: 42.5 mm diameter x 13.05 mm thick
Calibre: Manually wound Jaeger-LeCoultre Calibre 381
Functions: Hour, Minutes, Central Seconds, 1/6th of a second, Moon Phases, Date, Two power reserves
Power Reserve: 50 hours for each barrel
Front dial: Blue opaline
Water resistance: 5 bar
Strap: Alligator with small scale alligator lining
Reference: Q604848J

DUOMETRE HELIOTOURBILLON PERPETUAL
Case: Pink Gold 750/1000 (18 carats)
Dimensions: 44 mm x 14.7 mm thick
Calibre: Manually-wound Jaeger-LeCoultre Calibre 388
Functions: Hours and Minutes, Seconds, Heliotourbillon, Perpetual calendar (Day, Date, Month, Year), Moon phases, Two power reserves
Power Reserve: 46 hours for each barrel
Front dial: Silver opaline
Water resistance: 3 bar
Strap: Brown alligator leather with small-scale alligator lining
Reference: Q6202420 – limited edition of 20 pieces

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