Vacheron Constantin - 9720C/000G-B281

Artelier Cabinotiers Celestia Astronomical Grand Complication 3600

Case

Dial

Description

The twin-dial Celestia Astronomical Grand Complication 3600 from Vacheron Constantin's Artelier Cabinotiers was introduced at SIHH 2017. It combines astronomy and the watchmaking art in a white gold case of 45mm. Twenty-three essentially astronomical complications appear on the front and back dials of the watch, providing a reading of time in three modes C civil, solar and sidereal C each driven by its own gear train. Embodying the height of technical sophistication, its new fully integrated 514-part caliber measures a mere 8.7 mm thick, while six barrels guarantee three full weeks of power reserve. It is said to have taken five years of development.

Movement

Vacheron Constantin's caliber 3600 was launched during SIHH 2017 as part of its high-mech Les Cabinotiers series. It features an abundance of astronomical functions, in addition to 6 barrels providing for a power reserve of three weeks, and a tourbillon escapement. It consists of 514 parts including 64 jewels, and measures 8.7mm in height.

The full list of functions as provided by Vacheron Constantin is per following;

Hours, minutes, perpetual calendar, day/night indication, precision moon phase, age of the moon, running equation of time, sunrise and sunset time, day and night length, seasons, solstices, equinoxes and zodiacal signs, tide level indicator, Sun-Earth-Moon conjunction, opposition and quadrature, transparent sky chart of the northern hemisphere with indication of the Milky Way, of the ecliptic and celestial equator, hours and minutes of sidereal time, tourbillon, 3 weeks of power reserve (6 barrels), power reserve indication.

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