• Rose gold & Titanium
  • Ref. 518.501.GT.A
  • Limited to 18 pieces


For the new ETHERAL collection, the first with a round case in the brand's history, we embarked on a project to create a watch of utmost refinement, combining modern/futuristic aesthetics with state-of-the-art mechanics. A project that started in 2018 and became a reality in 2024. The starting point was to combine kinematics with an innovative new movement. The dial had to be mobile and striking at first glance. What elements should be placed on the dial? The choice fell on the oscillator associated with the digital time display. The result is two flying tourbillons and an original jumping hour display, giving the dial a powerful and appealing appearance.
Jean-François Mojon
Master Watchmaker

About the Etheral Twin Orbital Tourbillon

The year 2024 marks a new milestone in the brand’s history with the introduction of the new ETHERAL collection featuring a round case, a first for the Maison. The “Twin Orbital Tourbillon” is the first member of this new line. A creation which combines the manufacture’s best skills and know-how in a daring and innovative kinematics, equipped with the new in-house hand-wound calibre CYR518-E that boasts three patents pending.

The stars of the mobile 3D dial are the jumping hour indication by means of two truncated cone-shaped discs inclined at an angle of 18°, surmounted by a highly original triangular minute hand, and the two inclined flying tourbillons that appear to be suspended in mid-air. Positioned on a frame, all these components perform a spectacular dance. 

  • Material 4N rose gold & grade 5 titanium
  • Diameter 44 mm (excluding crowns and inserts)
  • Thickness 16.3 mm
  • Crown at 3 o’clock

    Position 1 to wind the movement; position 2 to adjust the time

  • Crown at 9 o’clock

    Pusher for quick hour increment

  • Glass Anti-reflective sapphire crystal glass on dial and case back
  • Water-resistance 5 ATM (50 m - 164 ft)
  • Material Black alligator leather strap, hand-stitched
  • Clasp Customized pin clasp in 4N rose gold and grade 5 titanium
  • Hour/minute indicators and two flying tourbillons on a rotating frame

    Hour indication via two inclined rotating discs, Arabic luminscents numerals emitting blue glow

    Rotating triangular minute hand, 4N gold-plated finish, bevelled angles, one tip with white Super-LumiNova with blue glow

    Minute flange, black PVD, 4N gold-plated indices with Arabic numeral at 5-minute intervals

    Two inclined flying tourbillon cages with helix-shaped bridges, 4N gold-plated finish, bevelled angles, clockwise rotation

    Openworked frame’s bridge with black PVD, tetrahedral motif insert


  • Jumping hours on two parallel discs inclined at an angle of 18°, one disc for the tens and one for the units.

    Legibility always in horizontal position

    Minute indication via a triangular hand

    Power reserve display on the case back


  • Calibre In-house manufactured hand-wound movement, calibre CYR518-E
  • Number of components 510
  • Number of jewels 63
  • Frequency 3 Hz
  • Vibrations per hour 21.600
  • Escapement Swiss lever escapement
  • Balance Wheel Free-sprung balance wheel with variable inertia
  • Patents Three patents pending
  • Winding Barrels Two parallel barrels with frosted, black PVD-coated ratchet wheels engraved with the logo.
  • Power reserve 72-hour
  • Bridges Circled surface with black PVD, bevelled and polished edges, frosted pockets in anthracite hue
Tourbillon cage
  • Weight 0.42 gr. each
  • Central tourbillon Two parallel flying tourbillons inclined at an angle of 20°, clockwise rotation of the two cages on frame
  • Rotation Complete rotation in 1 minute

Master Watchmaker

Master watchmaker, Jean-François Mojon, is one of today’s best-known and most courted in the craft. Honored at the Grand Prix de la Haute Horlogerie of Geneva in 2010 as “best independent master watchmaker”, Jean-François is the mastermind behind all CYRUS creations.

Jean-François Mojon

Jean-François Mojon

Etheral Twin Orbital Tourbillon

Limited to 18 pieces

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