An encounter between Fine Watchmaking and fluid mechanics. One might say a utopia. Shattering all certainties, steamrollering conformity, the idea that led to the H1 was simple and consisted of two flexible reservoirs fixed to each end of a capillary. In one was an aqueous liquid filled with fluorescein, and in the other, a transparent viscous liquid. To keep them separate : the repulsive force of the molecules in each liquid, with a meniscus to mark the boundary between the two. As the hours go by, the fluorescent liquid advances.

The meniscus, in the shape of a half moon, marks the breaking point with the other fluid in the tube, indicating the time. At 18:00, the fluorescent liquid comes back to its original position, going backwards. The secret that gets the reservoirs going ? Two bellows made of a highly resistant, flexible electro-deposited alloy, each driven by a piston. And this is where watchmaking comes in to activate the system.

Case :

Titanium with shot-peened and satin-finished surfaces brushed pink gold (5N) bezel and lugs

  • Diameter: 48.8 mm
  • Thickness: 17.9 mm
  • Grey rubber-clad screw-lock crown
  • Crown guard – Screw-locked added lugs
  • Metal dome at 06:00
  • Cambered sapphire crystal glass with anti-reflective coating on the inside
  • Screw-down sapphire back
  • Water-resistant to 100 meters

Functions :

Retrograde red fluidic hours; minutes, seconds

Movement :

Mechanical hand-wound, exclusive HYT calibre

  • 28,800 vph, 4 Hz, 35 jewels
  • Bridges hand-chamfered and adorned with Côtes de Genève, rhodiumed bellows
  • 65-hour power reserve.

Dial :

Unstructured, red fluid hours

  • Grey dial, pink gold (5N) indexes & numerals, pink gold (5N) minute hand
  • Luminescent minute hand and hour-markers
  • Regulator at 12:00
  • Small seconds wheel at 09:30
  • Power reserve indicator at 02:30

Strap :

Grey alligator, titanium pin buckle



Limited edition of 50 pieces


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