Jaeger-LeCoultre – MASTER® Ultra Thin Tourbillon Moon Le Grand Rose Gold 41.5 Automatic - 2020
JAEGER-LECOULTRE PRESENTS A NEW MASTER ULTRA THIN UNITING A MOON PHASE DISPLAY WITH A TOURBILLON
Jaeger-LeCoultre’s Master Ultra Thin collection epitomises the Manufacture’s philosophy of uniting technical virtuosity with enduring beauty, and in 2020 it is enriched by the new Master Ultra Thin Tourbillon Moon. The new timepiece combines two of horology’s most cherished complications for the first time in the Maison’s long history – a moon phase and a tourbillon, with the addition of Jaeger-LeCoultre’s signature peripheral ‘jumping’ date. Making its debut in the Master Ultra Thin Tourbillon Moon is the new self-winding Calibre 983.
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The tourbillon was invented at the dawn of the 19th Century, to counteract the negative impact of gravity on the escapements of pocket watches and thus increase accuracy. However, in the 20th century, as pocket watches were superseded by wrist watches, the tourbillon became largely forgotten. In 1946, as part of its continuous research into timekeeping precision, Jaeger-LeCoultre created a tourbillon movement, Calibre 170. Housed in a pocket watch, it was intended for chronometry trials – and in 1948 won first prize in the Neuchâtel Observatory centennial trials, followed by several more prizes during the 1950s. In 1993 – a time when tourbillon wristwatches were still very rare – Jaeger-LeCoultre produced its first example, a Reverso fitted with the rectangular Calibre 828. Further exploration brought the tourbillon to new horizons, leading to the invention of the first spherical, dual-axis tourbillon in 2004 – the Master Gyrotourbillon 1.
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For the Master Ultra Thin Tourbillon Moon, Jaeger-LeCoultre’s engineers capitalised on the 978 movement to develop the new Calibre 983, with the addition of the moon phase and ‘jumping’ date complications.
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Timeless style and a new pink gold alloy
The Master Ultra Thin Tourbillon Moon is presented in a case made of Le Grand Rose gold. Introduced this year, the new pink gold alloy has a remarkable sheen and depth of colour, and is highly resistant to fading over time. True to the classically elegant design codes of Master Ultra Thin, the case is fully polished, with elongated and bevelled lugs and a fine bezel.
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Original and intriguing displays
Set in the upper half of the dial, the astronomical complication displays the Northern Hemisphere moon phases in the traditional way – a deep blue sky scattered with stars provides the background for a polished golden disc. Surrounding this is a ring with applied Southern Hemisphere moon phases on the left and the Age of the Moon on the right, each indicated by a double-ended hand.
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For the peripheral date display the Manufacture’s engineers chose Jaeger-LeCoultre’s signature ‘jumping’ complication. Every month, the date hand makes 90-degree jump, gliding rapidly from the 15th to the 16th, in order not to obscure the tourbillon.
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Click, to see the large size. ▶ BIG FOTO 
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The open-worked pink gold winding rotor, which features the JL logo and a combination of polished and micro-blasted surfaces, allows a clear view of the movement, with additional fine finishes including blue screws, circular graining and chamfered bridges.
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Jaeger-LeCoultre: HOME OF FINE WATCHMAKING SINCE 1833
Located in the serene setting of the Vallée de Joux, our Home offers a unique sense of belonging. It is here, inspired by the exceptional landscapes of the Jura Mountains, guided by an unquenchable inner fire, that La Grande Maison gets its soul. With all crafts under one roof within the Manufacture, watchmakers, engineers, designers and artisans work together to give birth to fine watchmaking creations. Driven by a compelling energy and a spirit of collective invention that daily inspires the commitment of each and every member of our family, we cultivate our understated sophistication and technical creativity. This same spirit has powered the creation of more than 1200 calibres since 1833 and made Jaeger-LeCoultre the Watchmaker’s Watchmaker.
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TECHNICAL CHARACTERISTICS
Model: MASTER® Ultra Thin Tourbillon Moon Gold 41,5
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Ref. Q1692410 - Rose Gold
Movement
Jaeger-LeCoultre Calibre: 983AA – Automatic
Self-winding,
Components
: 332,
Vibrations per hour: 28.800,
Jewels: 35,
Barrel: 1, Côtes de Genève decoration
Height: 7.2 6
mm
Power reserve: 45 h
Case
Le Grand Rose gold
Dimensions: 41.5 mm
Thickness: 12.10 mm
Case-back: Open
Water resistance: 5 bar
Case Back: Open
Functions
Date, Hour - Minute, seconds, peripheral ‘jumping’ date (from the 15th to the 16th), tourbillon, Moon phases in both Hemispheres and age-of-moon indicator Power reserve: 45 hours, Tourbillon
Dial
Eggshell with applied indexes and Dauphine hands
Engraved moon phase counter
Strap
Brown
Leather
Gold folding-clasp
UP TO 8 YEARS OF WARRANTY
=====================--------Press Release - 2020
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