HYT Flow

HYT is one of the few watchmakers that can really be called mechanically unique. Sure, there are advances here and there and shiny new materials to play with, but nobody else has yet dipped their toes into the waters of hydro horology. Now, with the HTY Flow, they’re pushing it even further, day and night.

Like all HYT watches, the Flow is big. Huge in fact, at 51mm across its perfect circle. It’s lugless, so it doesn’t get any bigger, but that’s still a daunting wristwear prospect. The reason though is clear: light. The domineering sapphire crystal and the oversized dial are there to make best use of the watch’s own lighting system.


The Flow has two crowns. The first is simply to set the time, straightforwardly enough. The second is to illuminate the watch. This isn’t some quartz-driven battery-powered number though. The generator uses the energy from the mainspring to power the LED which lights up using the four o’clock pusher – and it is bright.

HYT Flow

It’s clearly visible during the day and at night illuminates the lightwave-inspired dial incredibly. There’s also a touch of lume underneath the signature liquid-filled time-keeping capillary around the edge of the watch, if you don’t want your timepiece doubling as a flashlight.

Despite all that, the in-house HYT movement still has a 65-hour power reserve and as always is a sight to behold from the back, with the bellows pumping the hour indicator on full show.

HYT Flow

The HYT Flow comes in two distinct variations; a high jewellery number with a dome set with 73 baguette-cut diamonds and a version where the diamonds are replaced with an odd void gazing into the movement. The former uses blue fluidic hours; the latter uses black. Light or dark, your pick.

HYT flow

Both pieces are limited to 25 examples, with the diamond dome setting you back CHF 149,000 and the black a good deal less at CHF 79,000.

Price & Specs:

Model: HYT Flow
Ref: H02593 (vortex)
H02464 (diamond dome)
Case/Dial: 51mm diameter x 20.6mm height, stainless steel
Water resistance: 30m (3 bar)
Movement: Mechanical with manual winding, exclusive calibre, 36 jewels
Frequency: 28,800 vph (4 Hz)
Power reserve: 65h
Functions: Hours, minutes, power reserve
Strap: Red or orange rubber with titanium folding buckle
Price/availability: CHF 79,000 (vortex) and CHF 149,000 (diamond dome), limited to 25 pieces each

More details at HYT Watches.