Advertisement: Jaeger-LeCoultre 2014 Collection

Duomètre à Quantième Lunaire

The new version of the Duomère à Quantième Lunaire comes with a 40.5 mm case in 18k white gold. In keeping with the high quality of its movement, it features an immaculate dial crafted in grand feu enamel which is spectacularly shiny and extremely complex to create.

Because running such an elaborate complication as a calendar within a classical watch has a detrimental effect on the precision of the time indications, the watchmakers at Jaeger-LeCoultre turned to the brand’s Dual-Wing concept to produce a calendar watch that was as accurate as a chronometer.

The hours, minutes, seconds and moon-phase displays are elegantly arranged on the dial. Inside the case, and partially hidden from view, beats Calibre 381, which boasts unprecedented precision based on the Dual-Wing concept, which is distinguished by the presence of two independent energy sources, each with a 50-hour power reserve: the first, regulated by the escapement and the balance, is entirely dedicated to the precise measurement of time; the second is devoted to the display of the functions: hours, minutes, seconds, calendar and moon phase. Their synchronization is ensured by the jumping seconds-hand mechanism. With a jumping seconds hand that moves in 1/6-second increments, and the date and moon-phase indicated on a separate subdial, this watch reaches new heights of precision.

Jaeger-LeCoultre Duometre a Quantieme Lunaire
Jaeger-LeCoultre Duomètre à Quantième Lunaire

Master Ultra Thin 1907 and Master Ultra Thin Grand Feu

To mark its 180th anniversary in 2011, Jaeger-LeCoultre honored its founder Antoine LeCoultre by dedicating an exceptional thin watch to his memory: the Master Ultra Thin Jubilee watch, which measured a mere 4.05 mm thin. In 2014, the Master Ultra Thin line welcomes two new models: the Master Ultra Thin 1907 and the Master Ultra Thin Grand Feu.

The extra-slim rose gold case of the Master Ultra Thin 1907 watch is shaped like a knife-blade, a design that ensures en even thinner profile. The engineers and watchmakers of the Manufacture meticulously studied each movement component and each case element in order to save precious millimeters at each stage of production.The minimalist philosophy behind the Master Ultra Thin 1907 watch is expressed in a 39-mm-diameter case designed to smoothly embrace the curve of any wrist.

This relatively modest size required Jaeger-LeCoultre to design and build a similarly small movement. Manually-wound Jaeger-LeCoultre Calibre 849, entirely crafted, assembled and decorated by hand in the brand’s complications workshop, has 123 parts, a 35-hour power reserve, and a balance beating at the frequency of 21,600 vph, and measures only 1.85 mm thin.

The watch’s grained white dial is punctuated by baton-type hour-markers (doubled at 3, 6 and 9 o’clock) and has two dauphine-type hands. The minutes dots between two hour- markers are dusted with rose gold, and the Jaeger-LeCoultre logo appears at 12 o’clock. The Master Ultra Thin 1907 watch comes with an alligator leather strap with 18k rose gold pin buckle.

The Master Ultra Thin Grand Feu watch contains the same ultra-thin movement and features a white-gold dial with Grand Feu enamel. The Grand Feu enamelling technique, mastered by only a few artisans today, involves firing the watch dial, meticulously coated with successive layers of enamel, at very high temperatures generally ranging from 800 to 900 degrees Celsius. The case of the Master Ultra Thin Grand Feu, also crafted from white gold, features the same blade-shaped profile, although it is slightly thicker, at 5.04 mm., in order to accommodate beneath the sapphire crystal the dial’s various enamel layers. The inscription “Email Grand Feu” appears on the dial between the 7 and 8 o’clock numerals.

Jaeger-LeCoultre Master Ultra Thin 1907
Jaeger-LeCoultre Master Ultra Thin 1907

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