Jaeger-LeCoultre has made more than 200 chiming watch calibres since 1870. But it was in 2006 that the Swiss luxury
watch and clock manufacturer stunned the horology community with its Reverso Hybris Mechanica à Triptyque and its use of a tourbillon with a high-precision ellipse isometer escapement.
This year, Jaeger-LeCoultre has unveiled the first watch in the world with four faces of timekeeping indications—the Reverso Hybris Mechanica Calibre 185 Quadriptyque—which was six years in the making. The 11 complications, including tourbillon, perpetual calendar and minute repeater mechanism, and the display of sidereal time, are all placed within the confines of a 51x31x15mm case.
A grande date is displayed at the 5 o’clock position.
The recto face of the case shows the tourbillon in the 7 o’clock position, and the indications of a perpetual calendar as well. In addition, a grande date is displayed at the 5 o’clock position.
With the slide of a lever located just above the crown, the Quadriptyque unleashes its melody. The striking works are completely exposed alongside a secondary time display, indicating the same time as the recto dial, but in a jumping-hours and peripheral-minutes format. Innovations, such as the crystal gongs that attach the repeater gongs directly, and the articulated trebuchet hammers that deliver a clean and strong strike to the gongs, allow JaegerLeCoultre minute repeaters to produce some of the loudest and clearest chiming available in a wristwatch.
displays of lunar information in a single wristwatch.
The Quadriptyque unites three displays of lunar information in a single wristwatch: the synodic cycle, the draconic cycle and the anomalistic cycle. This unique micromechanical combination of indications, located on the interior face of its cradle, allows the determination of eclipse events (both solar and lunar) and rare lunar phenomena, such as supermoons.
Occupying the top half of the interior face of the cradle is a massive representation of the Northern Hemisphere moon phases. Southern Hemisphere phases are displayed on the exterior face. The Quadriptyque requires only one adjustment—after 1,111 years.
The four functioning display Southern Hemisphere moon phas.
The secret to the timepiece’s four functioning display faces is that every day at midnight, a pin extends out of the main
case movement to activate a mechanical corrector in the cradle, which then advances the cradle displays. The mechanism driving the cradle displays is set directly into the cradle itself, without any additional movement plates that would increase the thickness of the watch.
REVERSO HYBRIS MECHANICA CALIBRE 185
CASE MATERIAL: White gold.
CASE DIMENSIONS: 51x31x15 mm.
MOVEMENT: Jaeger-LeCoultre Calibre 185, manually wound.
FUNCTIONS:
Face 1: Hour, Minute, tourbillon (indicating the second), Instantaneous Perpetual Calendar, Grande date, day, Month, Leap Year, Night & day.
Face 2: Jumping digital Hour, Minute, Minute Repeater (with system avoiding dead time).
Face 3: Northern Hemisphere Moon Phase, draconic Lunar Cycle (height of the moon), Anomalistic Lunar Cycle (apogee and perigee), Month, Year.
Face 4: Southern Hemisphere Moon Phase.
POWER RESERVE: 50 hours.
WATER RESISTANCE: 30M.
STRAP: Blue alligator.
LIMITED EDITION: 10 pieces.
US$1,350,000.
