It reproduces a sound that has never before existed in a wristwatch, the Master Grande Tradition à Répétitions Minutes by Jaeger-LeCoultre. The gong is attached directly to the sapphire crystal of the watch: in this way, the glass's properties of rapidly amplifying the intensity and purity of the acoustic vibrations emitted are maximised. The gong has a square cross-section instead of a traditional round cross-section, and a larger surface that comes into contact with the hammer, which can thus strike with greater force. The power reserve is 15 days.
Data sheet
Case: 18-carat rose gold (44 mm).
Bezel: 18-carat rose gold.
Crown: screw-locked.
Button: at 10, for activating minute repetition.
Glass: sapphire.
Water resistance: 5 atmospheres.
Back: screw-down with sapphire crystal.
Dial: gold finish, openwork, rhodium-plated applied hour markers, Dauphine hands, barrel torque display at 5 o'clock and power reserve display at 7 o'clock.
Movement: mechanical with manual winding, JLC 947 calibre, 15-day power reserve.
Strap: alligator.
Price: 172,000 euro.
