BASELWORLD 2015: HYT H3 - The Linear Fluid Revolution

BASELWORLD 2015: HYT H3 - The Linear Fluid Revolution

The world has been waiting for it, but no one knew what to expect. After keeping us on tenterhooks for a whole year, HYT's H3 has now burst onto the watchmaking scene. But can we still use the word "horology" to describe it?

Starting with a blank page

Known for blurring the lines, HYT has once again defied the limits of what is possible. The sculptural H3 is essentially inspired by a fluid portrayal of time, a field which the young independent brand has not only conquered, but one which it has radically (re)created in all areas.

In the conventional sense, there is no midday and there are no hands. The H3 is reinventing the wrist watch with its case measuring 62 x 41 mm. Its bespoke shaped movement is a perfect fit for each contour.

HYT and its partners have succeeded in creating a timepiece with a highly complex architecture. One of the main challenges lay in machining the case and the sapphire crystal. When it came to the movement, one of the most delicate steps in creating the H3 involved recovering the energy provided in the retrograde movement, which then powered the semi-instantaneous rotation of the watch's dial.


Its construction was initially inspired by the desire to have a linear portrayal of time, which resulted in a design with the bellows at opposite ends. The movement engineering teams then worked around this constraint – which became the stylistic signature of the H3 – to create the complete calibre.

A fully linear portrayal of time

The upper part of this living sculpture houses the bellows mechanism. The first, on the left, drives the progression of the fluid and therefore the time display. Its counterpart, on the right, compensates for this progression in the capillary. Less than one millimetre in diameter, this glass tube, operating in a vacuum, still contains two fluids: the first, (water-based) yellow fluid serves to tell the time; the second (viscous-based) translucent fluid works in opposition. A meniscus separates them.

The central part of the H3 is reserved for the time display. This features neither hands, nor satellite, nor any other system of time-reading ever invented before. Instead, HYT has created a rotating dial with 4 faces arranged along the time display tube. Each of these faces is graduated with 6 hours, thereby enabling the 24 hours of the day to be displayed.

Mechanical choreography in triple time

Each of the H3's vital organs therefore follows its own rhythm, bringing the dial to life as well revitalising time itself. Exclusively composed by HYT, the choreography was once again orchestrated by APRP (Audemars Piguet Renaud & Papi), also responsible for its predecessor, the H2.

"We started with a blank page and we capitalised on our fluid experience to create something entirely new", explained Vincent Perriard, HYT CEO. "Placing the bellows in opposition was something that really posed a challenge. They are coupled by a mechanical assembly (comprising a spindle, sensor and thermal compensator), and fitting this between the bellows was a very delicate operation."

An exceptional limited edition

As HYT had explained from the very start, the H3 stands out as the most exceptional timepiece in the brand's collections. Thanks to its two barrels, it boasts a 170-hour power reserve (equivalent to around 7 days). Produced in charcoal grey PVD-coated titanium and platinum, the series will be limited to 25 timepieces. The first timepieces will be available from September 2015.