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 velvet gun PVD with brushed, shot-peened and satin-finished surfaces

  • diameter: 48.8 mm
  • thickness:17.9 mm
  • black rubber-clad screw-lock crown
  • crown guard screw-locked added lugs
  • titanium velvet gun PVD 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 fluid 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, fluid hours

  • black hour dial, black indexes and grey numerals
  • silver rhodium minute dial, white indexes and numerals, white minute hand
  • luminescent hand and hour-markers
  • regulator at 12:00
  • small seconds wheel at 09:30
  • power-reserve indicator at 02:30

Strap :

black rubber alligator, titanium velvet gun PVD pin buckle



Limited edition of 50 pieces


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