Etheral Twin Orbital Tourbillon

The new ETHERAL collection introduced by CYRUS Genève features unprecedented watchmaking complications and a round case, an absolute first for the Maison.

After more than six years of work, the project launched in 2018, under the direction of master watchmaker Jean-François Mojon, has become a reality giving rise to the ETHERAL TWIN ORBITAL TOURBILLON crafted in a 44mm rose gold case with grade 5 titanium inserts and functional double crown.

With its 3D moving dial, the “ETHERAL Twin Orbital Tourbillon”, in a limited edition of 18 pieces, is a hymn to kinematics. As the hours pass, the jumping hours on two discs, the minute indication and the two flying tourbillons, both of which rotate clockwise, change position, keeping time perfectly readable always horizontally, all mounted on a chassis rotating in one hour, with the minute hand integrated into the large triangular-shaped upper bridge

All this is made possible by the new hand-wound manufacture calibre CYR518-E with a double barrel guaranteeing a 72-hour power reserve, comprising no fewer than 510 components, including 63 jewels and a regulating organ operating at 21.600 v/ph. This innovative and finely decorated movement also boasts three patents.

One of the three patents for this unprecedented movement concerns the balancing mechanism of the frame, requiring the development of a new and innovative solution to ensure perfect operation in the event of shocks.

Positioning the centre of gravity on the pivoting axis is the first step in reducing the impact of shocks on the frame. This nullifies the effects of linear shocks. However, angular accelerations always affect the frame and therefore the working components. The frame drives a rotating mass in opposite directions.

When an impact or angular accelerations occurs, the dynamic effects are cancelled out because the inertias of the frame and the rotating mass are equal, and the direction of rotation is reversed.

The mechanism for displaying the time by combining the tens and units’ discs is the subject of the other two patents.

One refers to the hour indicator. The hours appear on two discs driven by a single triangular-toothed star wheel through a 12-jump kinematic system. In addition to its simplicity, this mechanism also has the advantage of preventing any de-indexing.

A second patents is for the instant drive mechanism with surprise for unrestricted counter-clockwise time adjustment. The purpose of this device is to make the hour jump without double jumping and without desynchronisation when the time is set anti-clockwise.

Much attention has been paid to the aesthetics of the rear of the watch which echoes the sophisticated layout of the dial emphasized by refined finishes such as frosted and microbeaded surfaces, hand chamfered and polished edges, polished mirror screws and much more.

It is impossible not to notice that the inclined power-reserve disc, whose apertures change from white to black and then to red when the power reserve runs out, follows the shape of the unusual minute hand. Or the frosted, black PVD-coated barrel ratchet wheels engraved with the Cyrus logo.

The anti-reflective sapphire crystal case back, sealed with 8 titanium customised screws, enables to admire the many details and the array of decorations which confirm, once again, the highest level of mastery of Cyrus Genève.

The ETHERAL Twin Orbital Tourbillon is completed by a black alligator strap secured by a pin buckle in rose gold and titanium.