Image illustrating the gold automaton in the center of the dial

La Quête du temps

The Astronomer


La Quête du temps

An Automaton unlike any other

Since Antiquity, automata have either been standalone devices, or mechanisms that add an animation to a clock. Today, Vacheron Constantin has rethought this concept, inviting the automaton into the movement as a watchmaking complication to indicate the hours and minutes. The Astronomer thus stands as the soul of La Quête du Temps, translating Time as graceful movement set to music.


Image illustrating the automaton manipulated by a hand
A New Complication Choreography of Time Cosmos in Motion

A NEW COMPLICATION

Time told through gesture

Image illustrating a hand sculpted by a person holding an tool

For the Astronomer to accomplish its task, a mechanical memory transcribes the hours and minutes from the calibre to the automaton. 
This patented process translates the time into realistic gestures that change from one moment to the next due to the complex dial inscribed 
on the dome.

A new complication

144 movements, infinite emotion

Image illustrating the automaton seen from the back and its mechanical skeleton

Each activation of the automaton reveals a completely unique gesture. The scales are deliberately arranged in random order, ensuring that time is never indicated the same way twice. The Astronomer's body moves across multiple axes with exceptional fluidity and silence, mimicking the elegance of human movement.

Behind this choreography lies a feat of mechanics: 144 distinct gestures, powered by 158 cams, all hand-adjusted to produce a lifelike presence.

A Choreography of Time

Crafted like a sculpture, animated like a dancer

The Astronomer was sculpted in bronze by François Junod, engraved with constellations, set with diamond stars, and gilded like a jewel. Its posture, deliberately androgynous and graceful, evokes the movement of a dancer, adding emotion to each sequence.

This same knowledge made it possible to precisely choreograph the Astronomer's smallest gesture to the musical score.

A MECHANICAL BALLET

Three Acts of Mechanical Poetry

Act I – Awakening Act II – Celestial Dialogue Act III – Time Revealed

A COSMOS IN MOTION

The Astronomer

The figure poised beneath the glass heavens appears natural and balanced, concealing a tremendous amount of underlying ingenuity. At 40cm in diameter, 
the dome over the Astronomer proved a technical challenge, ultimately solved 
by resorting to arched supports like those of an armillary sphere. Likewise, the idea of indicating time on suspended scales within the dome posed issues of weight, resolved by the sintering of titanium alloy powder to create fine yet strong grids.

Image illustrating the automaton fixed in the middle of the sphere
Image illustrating a hand painting a constellation

A sky preserved forever

The hand-painted dome

Rising above the automaton, the glass dome is painted freehand from the inside to depict the night sky as it appeared above Geneva on September 17, 1755, the day Vacheron Constantin was born with the signing of its first apprentice. 

This precise celestial configuration, developed in collaboration with the Geneva Observatory, includes zodiac constellations along the ecliptic as well as Orion, Ursa Major and Ursa Minor, the stars children often learn to recognise first. Across its curved surface, the painted cosmos becomes both a map 
of origin and a stage for wonder, where time begins with the stars.

Mastering the art of automatons

François Junod, the Automaton sculptor

Image illustrating two hands manipulating the automatons

Recognised as the world’s greatest automatier, François Junod brought his unrivalled savoir-faire to La Quête du Temps. From his workshop in Sainte-Croix, cradle of automatons, he sculpted and articulated the Astronomer in bronze, hand-engraved it with constellations, and gilded it like a jewel. In close collaboration with Vacheron Constantin’s watchmakers and engineers, he devised articulation systems, head kinematics, and a patented mechanical memory, innovations that gave lifelike grace to 3,923 components, transforming mechanics into presence.

Image illustrating a hand paiting the automaton

Image illutrating a watch with a gold automaton that tells the time

Métiers d'Art Tribute to the Quest of Time

A feat of miniaturisation 
and innovation