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JAEGER-LECOULTRE PRESENTS THE REVERSO HYBRIS ARTISTICA CALIBRE 179

A NOBLE MARRIAGE OF TECHNICAL PROWESS AND AESTHETIC BEAUTY, WITH A NOD TO THE ART DECO ORIGINS OF THE REVERSO

Designed according to the harmonious proportions of the Golden Ratio, the Reverso is known in watchmaking as a canvas for artistic expression – and in 2023, Jaeger-LeCoultre presents the Reverso Hybris Artistica Calibre 179. This artistic expression of the Calibre 179 marries the technical tour-de-force of the Maison’s signature multi-axis tourbillon to the finest of artistic craftsmanship, harnessing the skills of the Manufacture’s Métiers Rares® (Rare Handcrafts) artisans to elevate this timepiece to a new level.

A tour-de-force of mechanical ingenuity

Representing mechanical sophistication of the highest order, Calibre 179 features the fourth evolution of the multi-axis tourbillon, developed by Jaeger-LeCoultre’s engineers specifically for the Reverso. The demand that the regulating mechanism be integrated into a movement that is shaped to follow the contours of the rectangular Reverso case and is slim enough to be comfortable on the wrist, makes the engineering feat all the more noteworthy. Moreover, Calibre 179 is a Duoface movement, displaying a different time zone on each dial as well as a 24-hour indicator for the second time zone on the reverse dial.

Visually enthralling to observe as it pirouettes around its twin axes, the structure of the Gyrotourbillon is highly complex: with a total of 123 components, it comprises one ultra-light titanium cage and a peripheral carriage mounted on ball-bearings; these two elements turn perpendicularly to each other at different speeds. The inner tourbillon cage rotates 360 degrees every 16 seconds and the peripheral carriage makes a full rotation once per minute; this peripheral carriage also provides a small seconds function, indicating the seconds on a ring that encircles the tourbillon aperture. A closer look reveals a blued semi-spherical balance spring beating at the heart of the mechanism, as well as the distinctive double-anchor shape of a Gyrolab balance ‘wheel’ – both elements paying testament to Jaeger-LeCoultre’s tireless quest for greater precision and mechanical efficiency. In this quest, the Manufacture’s engineers have created balance springs in several different forms over the years and this hemispherical shape, perfectly adapted to the hollow sphere at the heart of the Gyrotourbillon, adds aesthetic refinement as well as being highly efficient. The double-anchor shape of the Gyrolab was designed to reduce air friction and thus further enhance timekeeping accuracy.

Rather than being held in place by a conventional bridge, the tourbillon mechanism is supported by a ring of ball bearings. As a result, this flying gyrotourbillon appears to be floating in the space between the front and back dials of the Reverso, with no apparent means of support. The effect is amplified by the light reflected from the mirror-like surface of a polished blue lacquer disc positioned on the supporting cradle of the watch directly beneath the tourbillon aperture.

A showcase for the decorative arts

Anchoring the colour palette of the Reverso Hybris Artistica Calibre 179 and creating a rich contrast with the pink gold case, the glowing dark blue lacquer also appears on the front and reverse dials of the watch.

With its double-sided, Duoface movement, this Reverso offers two distinct personalities. On the front dial, in a subtle allusion to the geometric patterns of Art Deco that determined the original Reverso design, a fine lattice of golden lines contrasts with the blue lacquer background and complements the deep blue gradient lacquer of the time display.

These lines are in fact ultra-fine ribs of the calibre plate metal, which remained when the surface was hollowed out to create depressions to contain the lacquer. A work of extraordinary precision, the lacquer was deftly hand-applied between the metal ribs to achieve the desired richness of colour and exactly the right depth; the surface is then polished to a glossy finish so that its surface is flush with the golden ribs.

On the reverse dial, blue lacquer has been applied to the fine tracery of the skeletonised hours-minutes ring and its supporting bridges, highlighting the airy aesthetic and the contrast with the golden tones of various movement components, and the soft silvery texture of the micro-blasting. The decoration on the reverse dial is a fascinating marriage of technology and tradition, with laser skeletonisation complemented by hand chamfering and hand-applied lacquer – affirming Jaeger-LeCoultre’s deep commitment to tradition while constantly seeking innovative approaches to the art and science of horology. Representing approximately 14 hours of chamfering work just for the cage of the Gyrotourbillon and eight hours for the signature shape of one bridge on the reverse side, the Reverso Hybris Artistica Calibre 179 is testament to La Grande Maison’s commitment to hand-craftsmanship of the highest order.

Subtle new refinements for an iconic case

Instantly recognisable, the rectilinear geometry and harmonious proportions of the Reverso case – designed according to the Golden Ratio – belie the complexity of a design that incorporates the signature slide-and-swivel mechanism. The inside of the cradle is decorated with a deeply engraved sunray pattern that radiates out from the blue lacquer disc. With its strong Art Deco lines, emphasised by the signature gadroons above and below the dial, the case is a perfect foil for the intricate decoration of the two dials of the Reverso Hybris Artistica Calibre 179.

Comprising 382 components, including a Gyrotourbillon, a movement as complex as Calibre 179 naturally requires a generously sized case. However, with an overall thickness of 13.63mm and newly reconfigured and refined lugs, the Reverso Hybris Artistica Calibre 179 is designed to be elegant and wearable.

Crafted for true connoisseurs of art and mechanics, the Reverso Hybris Artistica Calibre 179 is a noble expression of the 180 skills brought together under one roof at the Manufacture Jaeger-LeCoultre – a remarkable collaboration between watchmakers and artisans who are at the peak of their powers.

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