Limited anthology

Chrono
Aeterna

Monobloc ceramic case · In‑house tourbillon · Chronometer certified

Aeterna timepiece
360° interactive — move your mouse
Dissect precision

Horology deconstructed

Anatomy of excellence

Case architecture Movement gears Dial face Hands set Bracelet & crown Movement detail
scroll → kinetic decomposition
Technical mastery

Beyond specification

±1s/d
Chronometer rating

COSC certified beyond industry standards

90h
Power reserve

Three barrels in series for consistent torque

5Hz
High frequency

36,000 vph for exceptional precision

37
Jewels

Synthetic rubies for reduced friction

Heritage of craft

The making of eternity

Phase 01
Design & prototyping

2 years of research, 47 prototypes, zero compromise

Phase 02
Material synthesis

Ceramic injection molding at 1600°C

Phase 03
Hand assembly

Single artisan, 80 hours per movement

Phase 04
Certification

15 days of chronometer testing

Metamorphosis of matter

Zirconium
ceramic shell

Milled from a single block of aerospace‑grade ceramic. 5x harder than stainless steel, hypoallergenic, and virtually scratchproof. Each case requires 72 hours of hand finishing.

2200 HVVickers hardness
9.2mmCase profile
100mWater resistance
Ceramic architecture
Calibre AET-01
Calibre AET‑01

Manual‑wound
tourbillon

312 components, assembled by a single artisan. Silicon escape wheel, 5Hz frequency, 90‑hour power reserve. Chronometer-certified and finished with Côtes de Genève and perlage.

Si₃N₄ escapement 18k gold bridges 90h reserve
From the atelier

Where time is forged

Watchmaker at work

Artisan assembly

Each movement is assembled by a single master watchmaker in our Geneva atelier.

Polishing ceremony

Hand finishing

Over 40 hours of polishing, anglage, and perlage per movement.

“The Chrono Aeterna represents a quantum leap in haute horlogerie. The fusion of aerospace ceramics with traditional Swiss finishing is unprecedented. This is not a watch — it is an instrument.”

— Philippe Dufour, Honorary Master Watchmaker
Independent Watchmaker, Geneva
The Aeterna collection

Beyond
precision

Each timepiece is presented in a polished walnut travel case, accompanied by a black ceramic cufflink set and a digital provenance certificate.

Request private appointment