Jaeger-LeCoultre Unveils Three High-Horology Masterpieces Showcasing Its Métiers Rares Craftsmanship

The trio of ultra-limited novelties includes the celestial Master Hybris Artistica Calibre 945 with a grisaille enamel dial, a 1,300-part Duometre Grande Sonnerie and the gem-set 101 Secrets.

Summary

Jaeger-LeCoultre unveils three high-horology releases: Master Hybris Artistica Calibre 945, Duometre Grande Sonnerie and 101 Secrets.

Features a celestial Cosmotourbillon, grisaille enamel, and a 1,300-component Westminster chiming movement.

The 101 Secrets high-jewelry edition houses the world’s smallest rectangular mechanical movement.

Jaeger-LeCoultre has reaffirmed its title as “The Watchmaker of Watchmakers” with the unveiling of three exceptional limited-edition timepieces that showcase the pinnacle of haute horlogerie, celestial mechanics and high-jewelry gem setting.

Leading the trio is the Master Hybris Artistica Calibre 945, an artistic reinterpretation of celestial timekeeping limited to just 5 pieces. Housed in a 45mm 18K white gold case, the timepiece captures the night sky above the Vallée de Joux through a multi-level domed dial executed in hand-crafted grisaille enamel — a 16th-century technique using Blanc de Limoges white enamel to create three-dimensional chiaroscuro effects over a midnight-blue background. The dial incorporates a Northern Hemisphere sky chart tracking real-time constellation positions alongside the 73-component flying Cosmotourbillon, which orbits the dial counter-clockwise once every sidereal day (23 hours, 56 minutes and 4 seconds). Completing the astronomical display is an integrated minute repeater that utilizes patented Cathedral crystal gongs and Trébuchet hammers to strike a pure, powerful chime.

Reaching the pinnacle of chiming complexity, the Duometre Grande Complication à Grande Sonnerie debuts as a single-piece edition powered by an updated interpretation of Calibre 182. Built from 1,300 individual components across 15 complications, the 45mm 18K pink gold and titanium case houses a Westminster-style Grande and Petite Sonnerie that plays the four-note melody of Big Ben via four gongs and four hammers. The movement leverages the brand’s dual-barrel Duometre system – separating timekeeping power from the chiming mechanism – and incorporates a flying tourbillon alongside a retrograde perpetual calendar that automatically adjusts for leap years until 2100. Acoustic enhancements include elongated metallic glass gongs and a titanium inner case, while a newly designed openworked blue-grey lacquered dial reveals the intricate strike sequence governors underneath.

Rounding out the releases is a new iteration of the 101 Secrets, a high-jewelry secret watch limited to only 3 pieces. Crafted in 18K pink gold, the double-rivière bracelet is set with 124 pink sapphires seamlessly graduated in 10 sizes and 7 shades from vivid cyclamen to pale blush, bordered by a contrasting band of grain-set white diamonds. Requiring 163 hours of gem-setting in the Métiers Rares™ atelier, the piece conceals a white mother-of-pearl dial beneath its gem-encrusted links, which pops open like a book when a hidden button at 6 o’clock is activated. At its core lies the legendary hand-wound Calibre 101 – originally invented in 1929 and composed of 98 parts weighing just one gram – which remains the world’s smallest rectangular mechanical movement in existence. For more information, visit Jaeger-LeCoultre’s official website.