Presented for the first time at Watches & Wonders 2026, the Complexity is ArtyA‘s centrepiece for this edition. In watchmaking, certain feats transcend mere complication.
The inclined tourbillon, or Cônillon, is one such achievement: in this rare variant, the balance wheel’s axis does not trace a cylindrical path as in the Breguet tradition, but a conical trajectory, compensating for the effects of gravity according to a radically different geometry.
ArtyA Genève crosses an unprecedented threshold with the Complexity: for the first time in horological history, two inclined tourbillons are positioned at 12 o’clock and 6 o’clock within the movement, according to a spatial architecture of rare complexity in which none of the axes of the balance, the cage, and the pallet fork are parallel to one another, ensuring absolute precision across all positions.
A double inclined tourbillon system with differential coupling, achieving a kinematic average of rate errors in order to smooth out gravity-induced deviations across positions, chronometric optimisation at 360 degrees.
«The Complexity is an extreme and spectacular mechanical sculpture, conceived to be admired from every angle while magnifying the chronometry and absolute precision that define the very essence of this watch.»
The Double Inclined Tourbillon 12H / 6H
A world first
In a classical tourbillon (Breguet, 1801), the balance wheel’s axis travels along a cylinder. In the inclined tourbillon, this axis traces a conical path during its rotation, compensating for the effects of gravity across several vertical positions simultaneously – whereas an ordinary tourbillon corrects only one.
The Complexity unites two such inclined tourbillons on an axis positioned at 12 o’clock and 6 o’clock. In this unprecedented configuration, none of the axes of the balance, the cage, and the pallet fork are parallel to one another.
Lineage: Éric Coudray and The Gyrotourbillon
The inclined tourbillon of the Complexity belongs to the lineage of Éric Coudray‘s work – one of the world’s foremost authorities on complex tourbillons, to whom we owe in particular the development of the gyrotourbillon. It is from this expertise, and from the mastery of multi-axis mechanisms it has engendered, that the architecture of the Complexity’s double inclined tourbillon at 12 and 6 o’clock originates.
Historically, the Cônillon traces its origins to the work of Andrew Holden Potter, circa 1860.
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Double tourbillon incliné avec différentiel: ce que cela apporte
A classical tourbillon compensates for the effects of gravity in a single vertical position. The inclined tourbillon, whose balance wheel’s axis traces a conical path, extends this correction to several positions simultaneously. Pairing two of them at 12 and 6 o’clock means covering the full range of vertical orientations the watch may assume on the wrist.
The differential is the keystone of this architecture: it distributes the energy from the barrel in a perfectly balanced manner between the two inclined tourbillons. Without it, any asymmetry in torque would translate into a rate discrepancy between the two regulators. With it, both cages continuously receive identical energy, guaranteeing a chronometric stability that neither tourbillon alone could achieve.
The result is regulation of a precision and consistency unprecedented in this configuration, delivered through a mechanical spectacle without equal: two inclined tourbillons in perpetual rotation, simultaneously visible from the dial, within their transparent sapphire case.
The Differential
A differential ensures the balanced distribution of energy between the two Cônillons. This additional mechanism guarantees that each cage receives an identical torque regardless of the winding position of the barrel – an indispensable condition for the chronometric stability of this twin-regulator architecture.
The Manufacture Calibre
An Exceptional Movement
The Complexity calibre is developed in collaboration with Purtec Sàrl (Vallorbe), specialists in innovative horological complications. Its 287 components and 44 jewels are the fruit of thousands of hours of engineering dedicated to resolving the challenges posed by the double inclined tourbillon at 12 and 6 o’clock: dynamic balance, energy transmission via the differential, and the preservation of precision within an architecture without precedent.
The extraordinary team at Purtec worked with remarkable energy to rise to this ambitious challenge set by ArtyA, delivering a very high watchmaking movement of irreproachable execution – mastered down to the finest details and pursued with exemplary consistency from the first concept through to the ultimate finishing, in perfect accordance with the traditions of contemporary haute horlogerie.
Confronted with extreme demands, ArtyA’s vision asserted itself as the driving force behind an exceptional realisation.
The movement beats at 21,600 vibrations per hour (3 Hz) and offers 50 hours of power reserve with manual winding. Its plate adopts an organic silhouette, with two apertures at 12 and 6 o’clock precisely dimensioned to house and expose the two inclined tourbillons beneath their respective sapphire domes.
Thus, each Conillion completes a 30 seconds rotation, while their offbeat rotating directions create a mesmerizing, kaleidoscopic mechanical spectacle of exceptional depth.
Engineered with a notably robust architecture, this movement offers enhanced shock resistance, surpassing mechanisms such as a gyro-tourbillon, thereby asserting a new vision of haute horlogerie.
