Vincent Perriard and three partners founded HYT in Neuchâtel in 2012 to show the time with liquid. Two small bellows push a colored fluid and a clear fluid through a glass tube around the dial, and the line where the two fluids meet marks the hour. The first watch, the H1, won the innovation prize at the Grand Prix d'Horlogerie de Genève that year.
I can source any watch, new or used, even very hard-to-get. I chose these examples to guide you.
T1 Series · 45.3mm · Manual wind · H03205-ATap to see the back
About $54,000 at launch in 2024
Blue liquid fills a glass tube around the dial to mark the hour, and at 6 o'clock it flows back to its starting point. A central hand shows the minutes. HYT introduced the T1 series in 2024.
Conical Tourbillon · 48 × 52.3mm · Manual wind · H03000-ATap to see the back
About $401,000 at launch in 2026
HYT tilted the tourbillon at the center of this watch, and it turns once every 30 seconds. Three small spheres of blue liquid circle it at different speeds. Blue liquid in a glass tube marks the hours. HYT made eight in rose gold.
Conical Tourbillon · 48 × 52.3mm · Manual wind · H03068-ATap to see the back
About $379,000 new in 2026
To mark its first ten years, HYT made eight titanium Conical Tourbillons. As the hours pass, blue liquid moves along a glass tube around the dial, and the line where it ends shows the hour. A blue hand shows the minutes.
S1 Series · 45.3 × 46.3mm · Manual wind · H03419-ATap to see the back
About $71,000 at launch in 2025
Green liquid in a glass tube marks the hours, and a central hand shows the minutes. With no dial in the way, you can watch the two bellows at the bottom push the liquid along. HYT showed this version at Watches & Wonders 2025.
Moon Runner · 48 × 52.3mm · Manual wind · H02757-A
About $125,000 at launch in 2022
A titanium sphere at the center shows the phase of the moon, and discs around it give the date and month. Red liquid in a glass tube that circles the dial marks the hours. HYT limited it to 27 pieces.
Hastroid · 48 × 52.3mm · Manual wind · H02698-A
About $75,000 at launch in 2022
HYT went out of business in 2021, and the Hastroid Green Nebula was the first watch of its return under chief executive Davide Cerrato. When the green liquid reaches 6 o'clock, it jumps back to the start, and the numerals glow green in the dark.
HYT went bankrupt in 2021, and Preciflex, a sister company, took over servicing for existing owners. Kairos Technology Switzerland bought HYT’s assets that year and relaunched the brand in 2022. HYT now services its watches through its retailers and its own certified technicians, and it guarantees new watches for five years.