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Girard-Perregaux's Cosmic Dance

Girard-Perregaux's Cosmic Dance

March 29, 2017

The majestic high-speed Tri-Axial tourbillon by Girard-Perregaux welcomes two captivating, delicately miniature-painted complications: a rotating globe with day/night indication and a precision moon phase display.

Girard-Perregaux has been defying gravity for 150 years and once again demonstrates its mastery of high-precision movements. The three-dimensional Planetarium watch combines a Tri-Axial tourbillon, a globe performing one full turn in 24 hours and an astronomical moon phase. Cleverly combining technical expertise, iconic design and traditional craftsmanship, it distils the essence of the Girard-Perregaux DNA: arrow-shaped gold bridges, a lyre-shaped tourbillon carriage, sapphire domes and a side opening enabling light to flood into this superbly refined mechanism.

A Sidereal Trio: The tourbillon, an ingenious device compensating for the effects of gravity on a mechanical watch, is a speciality of Girard-Perregaux, which developed an innovative and sophisticated version in 2014 – the Tri-Axial Tourbillon – that joined other previous interpretations such as the bi-axial tourbillon. As its name implies, this high-speed tourbillon is equipped with a regulator operating on three rotation axes instead of just one.

This featherweight 1.24-gram, 140-part movement comprises an inner lyre-shaped carriage – a signature of the maison since 1880 – performing one rotation per minute. It is fitted inside a structure spinning on a second axis in 30-second cycles. Both are in turn incorporated within a third structure revolving once every two minutes on yet another axis. The result is a mesmerizing choreography entirely dedicated to conquering precision.

Reaching for the Moon: Two astronomical complications join the dance. The globe with its 24-hour rotation provides an instant reading of the time around the world. Set to 12 o’clock (noon), the arrow indicator positioned at the base of the 13mm-diameter aluminium sphere serves to show where it is daytime on the dial side, and where it is night-time, on the back. Hand-crafted using the miniature painting technique, its cartography depicts the world as it was in 1791, the year the brand was created.

The equally micro-painted lunar disc picks up the 17th century selenography at the time the telescope was invented, beautifully matching the blue shades of the rotating globe and reproducing the moon as we see it. Equipped with a precision mechanism, the astronomical moon-phase indicator requires adjustment only once every 122 years, by means of a dedicated corrector at 2 o’clock.

Dream-Like Visions: The 48mm-diameter rose gold case is endowed with all the attributes of Girard-Perregaux fine watchmaking: an imposing curved case middle, a bevelled bezel and cambered lugs. Water-resistant to 30 metres, it is topped by a three-part sapphire crystal, with two domes providing space for the rotation of the tri-axial tourbillon and the globe. The transparent caseback and the side opening in the case ensure a perfect view of this complex mechanism, literally flooding it with light.

Equipped with the hand-winding manufacture caliber GP09310-0001 ensuring a 70-hour power reserve, the Planetarium with Tri-Axial tourbillon drives the hours, minutes, moon phase and day/night functions. These indications are displayed on a guilloché silver-toned dial bearing a motif evoking Earth’s meridians and punctuated by rose gold numerals and hour markers swept over by dauphine-type hands.

This movement, visible through the transparent screw-down back, is adorned with meticulous hand-crafted finishing and the iconic signature characteristics of the maison: arrow-shaped bridges, along with the engraved eagle symbol holding the brand insignia. The rear baseplate is sandblasted and black PVD-treated to accentuate the ‘night’ side of the day/night indicator, thus making a striking contrast with the silver-toned guilloché dial. The Planetarium Tri-Axial watch is fitted with a black alligator leather strap with a rose gold folding clasp.

Technical Specifications

Case

  • 18-karat rose gold
  • Diameter: 48mm
  • Thickness: 18.66mm (21.52mm including the domes)
  • Caseback: Sapphire crystal
  • Dial: Silver-toned, guilloché
  • Water resistance: 30m (3 ATM)

Movement

  • Mechanical hand-winding movement GP09310-0001
  • Frequency: 21,600 vph – (3 Hz)
  • Number of Components: 386
  • Power Reserve: Approximately 60 hours

Functions

  • Tri-Axial tourbillon
  • Hours
  • Minutes
  • Moon phase
  • Day/night indicators

Tri-Axial Tourbillon Carriage

  • One complete revolution in two minutes
  • 140 components, 1.24 grams

Strap

  • Hand-stitched black alligator leather
  • Rose gold triple folding clasp
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