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Jaeger-LeCoultre unveils the Master Hybris Artistica Calibre 945 watch
By Shivani Dubey | 24 October 2025 | Design, Style
Jaeger-LeCoultre has reinterpreted the celestial complications to create the Master Hybris Artistica Calibre 945 watch
It is always fascinating to watch how esteemed watchmakers artistically reinterpret celestial complications in their watches, something Jaeger-LeCoultre has masterfully done with its Master Hybris Artistica Calibre 945 watch.
Limited to just five pieces, the watch has a midnight-blue Grand Feu enamel dial with a golden-coloured filigree structure set in an 18K pink gold case. Originally created in 2010, Calibre 945 unites a star chart indicating the constellations in the northern hemisphere moving in real time, a minute repeater and Jaeger-LeCoultre’s flying cosmotourbillon, which displays sidereal time.
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The cosmotourbillon is a celestial flying 60-second tourbillon, which also measures the passing of time by making a complete, anti-clockwise circuit of the dial in one sidereal day. It does so in tandem with the northern hemisphere sky chart that tracks the positions of the constellations in real time as seen from Switzerland’s Vallée de Joux – Jaeger-LeCoultre’s home since its founding in 1833.
Hand-decorated by the skilled artisans at Jaeger-LeCoultre, the Master Hybris Artistica Calibre 945’s triple-level dome-shaped dial amplifies the celestial theme’s beauty – in particular that of the cosmotourbillon – by adding a filigreed ‘atomium’ structure that alludes to the lines connecting the constellations on the sky chart.
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In a subtle allusion to the way the night sky seems to form a dome above us when we look at the stars, the ‘atomium’ wraps around the cosmotourbillon and holds the central dome of the dial, which is decorated with dark blue Grand Feu enamel with transferred constellations in white.
The watch comes with blue alligator leather straps with small-scale alligator lining and pink gold adjustable folding clasp. Enhancing both aesthetics and ease of use, the watch has no recessed buttons in the side of the case for setting: all functions and displays are set via the crown. The minute repeater is activated by a slide on the left side of the case.