Caliber 2460 RT

Around the outer dial rim, the time is displayed by two triangular peripheral hands: a cut-out one for the hours and a solid one for the minutes. The key highlight of this watch is the elliptical path of the Earth around the Sun, reproducing the heliocentric system. The depiction of the Earth spinning on its own axis as well as orbiting around the Sun is extremely realistic, with the device operating the latter function requiring only one correction in 8,000 years! All functions are adjusted via the crown.

Developed and manufactured by Vacheron Constantin

Caliber 2460 RT

INDICATIONS

Indication of the hours and minutes by peripheral hands
Earth's rotation on its own axis and the Earth's orbit around the Sun

Key points

The art of Grand Feu enamelling

The first dial of the Métiers d'Art Copernicus watch gives pride of place to various enamelling techniques. The champlevé Grand Feu enamel Earth reveals the blue of the oceans and the geography of the continents, an authentic technical feat when portrayed on such a scale. In the background, a map of the sky on a gold base, punctuated by fine lines illustrating the orbit of the five planets shown, is enamelled in pastel colours. Each of these heavenly bodies, represented by a star, is mentioned by its Latin name, as are the two solstices. The 12 zodiac signs in polychrome enamel appearing on the outer part of the dial are finished with a quill pen and filled using a fine brush. A meticulous and perilous task that took over a month to complete.

The art of engraving

The 12 signs of the zodiac intertwine on a white gold disc appearing on the hand-engraved dial of the second Métiers d'Art Copernicus model. The master engraver has provided a wealth of details: the bulging muscles of Sagittarius or the flowing mane of Capricorn are outstandingly realistic when viewed under a magnifying glass. On the Earth orbiting around a flaming gold Sun, the finesse of details has been pushed to extremes: the oceans are covered with microscopic waves achieved by engraving effects, while the contrasting continents are polished to accentuate the luminosity of the gold. An expression of truly exceptional craftsmanship.

The combined art of laser engraving and hand engraving on sapphire crystal

The dial of the third Métiers d'Art Copernicus model features new decorative techniques.To accompany the dance of the Earth and the Sun, the zodiac signs are complemented by a 3D-effect star-studded sky. The Earth is hand-engraved and picks up this contrast between the fine graining of the ocean waves and the brilliant glow of the continents. A hand-painted midnight blue underdial is overlaid with a transparent sapphire crystal engraved on its back. The innovative laser technique is used to sculpt the symbols before the master engraver works them over entirely by hand so as to accentuate the raised motifs. On the front, the constellations are laser-engraved and then highlighted with Super-Luminova®, revealing the captivating sight of the sky chart in the semi-darkness.

Design and finishing

Creativity of the master artisans

Creativity of the master artisans

The spectacular dial decorations are inspired by the graphic and baroque depictions of the 17th century cartographer Andreas Cellarius, author of the most important colourful sky map, Harmonia Macrocosmica.

The art of miniaturisation

The art of miniaturisation

The Earth's orbital path is represented by a tiny gold disc, slightly domed and measuring barely 6.8 mm diameter, featuring a polar view of the continents based on a Lambert conic map projection.

Celestial symbols

Celestial symbols

12 stylised zodiac signs are engraved around the 43 mm-diameter bezel rim.

Perfectly mastered details

Perfectly mastered details

Through the back of the watch, protected by a sapphire crystal, the oscillating weight reveals an engraving of a radiant Sun surrounded by ellipses.

Technical specifications

7600U/000G-B212 (Grand Feu enamel)

  • Reference
    7600U/000G-B212 (Grand Feu enamel)
    Hallmark of Geneva certified timepiece
    Only available in Vacheron Constantin Boutiques
  • Case
    18K white gold
    43 mm diameter, 12.9 mm thick
    Transparent sapphire crystal caseback
  • Dial
    18K 5N gold stamped sun and hand-engraved
    22K gold, Grand Feu enamel, champlevé Grand Feu enamel Earth
  • Strap/bracelet
    Black Mississippiensis alligator leather with alligator leather inner shell, large square scales
  • Buckle/clasp
    18K white gold buckle
    Polished half Maltese cross-shaped

7600U/000G-B211 (Gravure)

  • Reference
    7600U/000G-B211 (Gravure)
    Hallmark of Geneva certified timepiece
    Only available in Vacheron Constantin Boutiques
  • Case
    18K white gold
    43 mm diameter, 12.9 mm thick
    Transparent sapphire crystal caseback
  • Dial
    18K 5N gold stamped sun and hand-engraved
    18K gold, hand-engraved dial and Earth
  • Strap/bracelet
    Black Mississippiensis alligator leather with alligator leather inner shell, large square scales
  • Buckle/clasp
    18K white gold buckle
    Polished half Maltese cross-shaped

7600U/000G-B226 (Sapphire)

  • Reference
    7600U/000G-B226 (Sapphire)
    Hallmark of Geneva certified timepiece
    Only available in Vacheron Constantin Boutiques
  • Case
    18K white gold
    43 mm diameter, 12.9 mm thick
    Transparent sapphire crystal caseback
  • Dial
    18K 5N gold stamped sun and hand-engraved
    18K gold, hand-painted dial (sky); laser engraving & hand-engraving on sapphire crystal (zodiac signs); laser engraving & Super-Luminova® (constellations); hand-engraved Earth
  • Strap/bracelet
    Blue Mississippiensis alligator leather with alligator leather inner shell, large square scales
  • Buckle/clasp
    18K white gold buckle
    Polished half Maltese cross-shaped

Caliber 2460 RT

  • Movement
    Mechanical self-winding
  • Diameter
    37 (11 1/4’’’)
  • Thickness
    6.7
  • Power reserve
    Approximately 36 hours
  • Frequency
    4 Hz (28,800 vibrations/hour)
  • Number of components
    352
  • Number of jewels
    27

Astronomical watches

Our astronomical watches

Our astronomical watches

From the 19th century to the present day, the history of astronomical complications at Vacheron Constantin has been punctuated by a longstanding tradition of horological expertise.

Discover the entire range of astronomical watches in the various collections of the Manufacture.

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