HYT H1, Black/Silver Dial - Titanium Black DLC & Pink Gold on Strap

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Motion in Time, Inc. specialized in discounted brand name watches, and has been in the Jewelry Industry since 1984. Motion in Time is not an authorized dealer for, or otherwise affiliated in any way with, the brands it offers for sale, including, nut not limited to Cartier, Van Cleef & Arpels, IWC, Officine Panerai, Jaeger-Lecoultre, Baume & Mercier, Vacheron Constantin, Piaget, Montblanc, Roger Dubuis, A. Lange & Sohne, Ralph Lauren and Alfred Dunhill, and we cannot advertise the watches we sell as new. thus, the watches we sell are used, but some of them are unworn. the manufacturer’s warranty will not be honored on the watches sold by motion in time

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Series: H1 Collection
Ref No: 148-DG-22-GF-RU
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Brands: HYT
Series: H1 Collection
Movement Type: Manual Winding
Movement/Caliber: Caliber 101vvvv
Power Reserve: 65 h
Number of Jewels: 35
Frequency: 28,800 Vph
Case-Material: Titanium Black DLC / Pink Gold
Case Diameter: 48.8mm
Case Thickness: 17.9mm
Dial: Black / Silver
Dial Numeral: Arabic Numerals
Crystal: Sapphire Crystal
Water Resistant: 100m / 330ft
Bracelet Material: Rubber
Strap Color: Black
Clasp Type: Tang Buckle
Retrograde Fluid Hours, Minute
Power Reserve Indicator, Limited Edition, Screw-Down Crown, Display Back, Luminescent numerals, Small Second
An encounter between Fine Watchmaking and fluid mechanics.

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.

The two reservoirs at 06:00. While the first compresses, the second expands, and the other way round, resulting in the movement of  the liquid in the capillary.


Orchestrated by Brino Moutarlier, alongside Jean-François Mojon and his Chronode SA team, a mechanical movement is situated in the upper part of the watch, and propels a cam, which pushes the piston and activates the bellows.

The main challenge lay in finding an interface between the mechanical movement and the hydro system in a closed, waterproof circuit - a task further complicated by the limited space available to house them both. They had to be assembled separately to keep them independent, and then made to operate simultaneously. This is a highly delicate modular integration, which involves other constraints, such as the installation of the dial in two parts, through the sides.

- Titanium in black DLC with brushed, shot-peened and satin-finished surfaces brushed pink gold (5N) bezel and lugs
- Diameter: 48.8 mm
- Thickness: 17.9 mm
- 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

- Unstructured, fluid jours
- Back dial, pink gold (5N) indexes and numerals, Pink gold (5N) minute hand
- Luminescent hand and hour-markers
- Regulator at 12:00
- Small seconds wheel at 09:30
- Power reserve indicator at 02:30

The secret force driving the reservoirs is 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.

Also known as: HYT 148-DG-22-GF-RU, 148DG22GFRU