New: Jaeger-LeCoultre Master Grande Tradition Répétition Minutes Perpétuelle

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In May 2019, following the success of the Master Grande Tradition Gyrotourbillon Westminster Perpétuel at the Salon International de la Haute Horlogerie (SIHH), Jaeger-LeCoultre debuts a timepiece that once again brings new levels of excellence to its mastery of chiming watches The Master Grande Tradition Répétition Minutes Perpétuelle features an innovative gong system that resurrects the idealised chime of antique pocket sonneries, paired with an evolutionary case design that transmits timelessness and modernity

Press Release

Jaeger-LeCoultre Master Grande Tradition Répétition Minutes Perpétuelle

Key points of the Jaeger-LeCoultre Master Grande Tradition Répétition Minutes Perpétuelle

 A new gong system that replicates the richness and strength of antique sonnerie pocket watches

 Evolutionary case design that redefines the timelessness and modernity of the Master Grande Tradition timepieces

 Heightened focus on customer experience with automatic winding system and intuitive perpetual-calendar setting

A new chime

Innovation in the domain of chiming watches has been one of the foundation stones of mechanical expertise at Jaeger-LeCoultre since 1895, when the company was awarded a patent for the world’s first silent strike regulator.

In the 21st century, Jaeger-LeCoultre channelled its creativity in sonnerie watches towards producing the most energy-efficient and volume-optimised chime possible

The Master Grande Tradition Répétition Minutes Perpétuelle represents the next generation of chime-related innovation at La Grande Maison Its movement, the automatic calibre 950, unites the two apex values of chime quality that were previously thought to be incompatible — power and beauty.

This combination of qualities has largely eluded the best watchmakers in history, the understanding being that one can come only at the cost of the other

The research and innovation team of Jaeger-LeCoultre have achieved this idealised chime by creating an entirely novel gong configuration, unlike any other Instead of lying flat in overlapping coils like the most commonly seen minute repeater gongs, the gongs of the Master Grande Tradition Répétition Minutes Perpétuelle depart radically from convention by incorporating unprecedented height and space.

Two gongs, welded together at their base, travel in the same direction around the periphery of the movement, making one near-complete tour before dramatically arching upwards, traversing the entire height of the movement They then diverge and take a terminal semi-arc around the other side of the movement, stopping just before their ends meet

The gongs

By maximising the space occupied by the element that creates sound vibrations — the gongs — the calibre 950 boosts its capacity for sound transmission.

Further increasing this capacity is the proximity of the gongs to a larger proportion of the watch case, according to the acoustic principles that instinctively guide us where to position a relatively weak audio source in relation to an resonator (such as when a personal music player is placed in a glass dish to amplify the sound)

Signature chime innovations of Jaeger-LeCoultre, such as the square gong cross-sections and the articulated “trebuchet” hammers, ensure that the gongs are struck with the greatest possible impact and the least interference from hammer recoil These set the stage for []

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