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Haute Horlogerie Dominique Renaud (HHDR) marks its official debut with the launch of the Pulse60, unveiled in preview at the Time To Watches fair in Geneva (April 14–19, 2026). This first creation of the new Dominique Renaud brand introduces a radical approach to low‑frequency mechanical watchmaking and expresses the purest form of Renaud’s watchmaking philosophy.
A Vision Rooted in First Principles
Dominique Renaud, co‑founder of the legendary Renaud & Papi manufacture and creator of numerous landmark complications, returns with a renewed focus on foundational movement principles. Guided by the maxim “form ever follows function,” his work embraces clarity, purity and a minimalist, self‑evident aesthetic.
The establishment of HHDR in Tolochenaz brings together a team of watchmakers, designers and engineers in a collaborative, idea‑driven environment. HHDR is conceived as a living laboratory — a place where experimentation, shared expertise and long‑term exploration shape new forms of contemporary horology.
Pulse60 — A New Mechanical Language
At the heart of the Pulse60 is the newly developed BUA2024 movement, which embraces an ultra‑low 1 Hz frequency — just one oscillation per second, echoing the natural rhythm of the human heart. This approach reduces escapement shocks and disturbances, transforming time measurement into a slower, more embodied rhythm.
To master this low frequency, the movement features a monumental 20 mm high‑inertia balance wheel, inspired by marine chronometers. Its large moment of inertia stabilizes the rate by absorbing minute variations in energy and motion.
Dominique Renaud has also completely reimagined the regulating organ, allowing amplitude greater than 360° without knocking, with a theoretical range reaching approximately 700°. This unprecedented freedom greatly improves static rate stability by allowing the balance to follow its own natural dynamics over a longer portion of its oscillation.
A Design That Expresses Its Mechanics
The Pulse60’s innovative mechanics are reflected in its seamless, fluid architecture:
- A domed crystal with no bezel
- Lug‑less construction and integrated strap
- Three‑part case structure
- Diamond‑cut or guilloché dial details
- A patented offset regulation system placed outside the balance wheel, offering a completely unobstructed view of the slow‑beating 1 Hz oscillator
The display includes an hour‑minute dial at 12 o’clock, a natural dead half‑second at 9 o’clock, and a torque indicator at 3 o’clock. The caseback reveals a minimalist composition of circular and linear forms, framing the openworked escapement line and double‑roller assembly.
| Calibre | Dominique Renaud BUA2024 |
|---|---|
| Diameter | 33 mm |
| Balance Frequency | 1 Hz / 7,200 vibrations per hour |
| Balance Wheel | 20 mm high‑inertia balance wheel |
| Hairspring | 15 mm diameter |
| Regulating System | Patented offset index assembly |
| Amplitude | Greater than 360° without knocking (theoretical range approx. 700°) |
| Power Reserve | 4 days |
| Notable Features | • Ultra‑low 1 Hz frequency • Large free‑oscillation zone improving static rate stability • Reduced escapement disturbances • Reimagined regulating organ • Natural dead half‑second indication |
| Case Materials | Grade 5 Titanium / Pink Gold & Grade 5 Titanium |
|---|---|
| Dimensions | 40 mm x 44 mm |
| Thickness | 12 mm (including domed sapphire crystal) |
| Crystal | Domed sapphire with anti‑reflective treatment |
| Caseback | Flat sapphire crystal with anti‑reflective treatment |
| Water Resistance | 3 ATM / 30 m |
| Dial | • Titanium version: grey or black opaline with diamond‑cut openings • Pink Gold & Titanium: modern guilloché • Hour/minute subdial at 12 o’clock • Natural dead half‑second at 9 o’clock • Torque indicator at 3 o’clock |
| Case Design | • No bezel, no lugs • Integrated strap interface • Three‑part construction • Circular satin‑brushed top, polished flanks • Openworked architecture on caseback |
| Strap | Interchangeable rubber strap with push‑button system |
| Buckle | Delivered with pin buckle and triple‑folding clasp |
