challenge everything

S1 Titanium

DLC Red

Millésime Edition

The S1 Red is the S1 on the redline, a hydromechanical gauge for pure adrenaline.

The S1 Titanium DLC Red is the S1 turned up to maximum tension, a hydromechanical sports watch designed to live permanently in the red zone. As an S1 Millésime Edition produced only until April 2027, it captures a very specific, high‑adrenaline chapter in HYT’s story.
Its black DLC‑coated titanium case with red ceramic trim sets the tone: stealth surfaces cut by a vivid line of colour that echoes the red fluid tracking the hours. On the dial, white and red decals, red SLN and bold numerals create a high‑contrast stage where the liquid meniscus reads like a rev counter sweeping around the periphery.
Driving the show is the manual 501‑CM calibre, a 352‑component hydromechanical “power plant” with 72 hours of autonomy. Two bellows at 6 o’clock push and pull immiscible red and transparent liquids through a 0.8 mm borosilicate capillary, a patented system that transforms the boundary between them into a moving hour marker.
The angular 45.30 × 17.20 mm titanium case remains surprisingly wearable thanks to its ergonomic profile and steep strap integration. A full red rubber strap picks up the colour of the fluid and ceramic trim, turning the watch into a pure adrenaline gauge on the wrist, yet the quick‑release system lets you switch to a more discreet strap in seconds.

CHALLENGE EVERYTHING

Technical Information
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Black DLC coated titanium with red ceramic-coated trim

Black coated Titanium crown

Sapphire crystal with anti-reflective coating

Fluidic retrograde hours

Central minutes hand

Power reserve hand

Small second hand

501-CM (352 components)

Type: Mechanical

Frequency: 28,800 vib/h (4 Hz)

Jewels: 41

Winding: Manual

Power reserve: 72 hours

Finishing: Finely sand-blasted and satin-finished

Coating: Black coating

Black coated brass

Rhodium plated appliques, white and red decals, SLN White C1 / WL

Red liquid inside borosilicate capillary tube

Water-resistant 50 m

Red rubber strap

Pure black rubber strap

Rhodium plated satin minutes hand, red SLN

Rhodium plated satin seconds hand, red SLN

Rhodium plated satin power reserve hand, red SLN

Pin buckle and loop buckle simple in titanium black DLC

Satin & sand-blasted finishes

Width: 45,30 mm

Length: 46,30 mm

Thickness: 17,20 mm

CHF 64’000 (excl. taxes)

Reference: H03555-A

CASEBACK ENGRAVING: HS-77

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