Signature
Explore the engineering
AURELIS X1
Automatic Chronograph
AX1-4025-GR · 316L stainless steel
Maison Aurelis · Genève
The artof time
Precision engineered for those who value every second. Two hundred and eighteen components, assembled by one pair of hands, in a case you will never need to replace.
01 — Chapter
Precision
Four seconds a day, in every position.
−2 / +4seconds per day
02 — Chapter
Craftsmanship
Thirty-eight hours, one pair of hands.
38hours at the bench
03 — Chapter
Movement
Twenty-eight thousand eight hundred beats an hour.
4 Hz28,800 vph
04 — Chapter
Materials
Sapphire, ceramic, 316L, titanium.
9Mohs, sapphire
05 — Chapter
Designed to last.
A watch is only finished when it outlives its owner.
∞serviceable, always
01The collection
Three references.One obsession.
Each one answers a different question. None of them answers all three. Open any of them and you will find the same eleven components, arranged with the same intent.
The experience
Every AURELIScomes apart.
Open any reference and the watch separates along its assembly axis — crystal, bezel, hands, dial, case, movement, gear train, mainspring, balance, rotor, caseback. Select a piece and it tells you what it is, what it does and what it is made of.
05The craft
How a watchbecomes a watch.
Fourteen months from the first drawing to the first shipment. This is where they go.
01 — Design
Every line begins with intention.
Before a single component exists, the case is drawn at four times scale and printed for the hand. Proportion is decided on the wrist, not on a screen — a lug half a millimetre too long is invisible in a render and unbearable in wear.
14 months · 63 revisions
02 — Engineering
Thousands of components. One purpose.
The caliber is modelled, simulated and then cut in brass to be proven in metal. Torque curves are measured across the full 42-hour reserve, because a movement that runs beautifully when fully wound and badly at hour thirty-eight is not finished.
218 components · ±0.001 mm
03 — Assembly
Precision measured in microns.
One watchmaker, one movement, from first bridge to final regulation. The bench is held at 21 °C and filtered to Class 7 — a single particle of dust between two wheels is enough to cost the watch four seconds a day.
38 hours at the bench
04 — Testing
Built to perform beyond expectations.
Fifteen days in five positions and three temperatures. Shock to 5,000 g, magnetic exposure, pressure to twice the rated depth. Roughly one movement in nine goes back to the bench — and every one of them comes back.
15 days · 5 positions
05 — Time
Made to become part of yours.
It leaves in a sealed case with its serial, its rate certificate, and the name of the watchmaker who assembled it. From that moment the watch stops being ours. Everything after this — the scratches included — belongs to you.
Numbered · Signed · Yours
06Engineered materials
Chosen for howthey age.
Nothing here was selected because it was easy to machine.
Second only to diamond
Aluminium oxide crystallised at 2,050 °C over sixteen days into a single boule, then cut with diamond tooling because nothing else will touch it. Seven anti-reflective layers are deposited on the inner face so that the crystal disappears entirely.
- Hardness
- 9 Mohs
- Growth
- 16 days per boule
- Light transmission
- 99.2%
- Layers
- 7 AR coatings
Grown in Annecy, France
Crystal · Caseback windowSapphire Crystal
07The maison
Nine people,in one room.
AURELIS has never made more than four hundred watches in a year, and has no intention of starting. Every caliber is assembled at a single bench by a single watchmaker, who signs the certificate that leaves with it.
We publish the anatomy of our movements because we would rather be judged on what is inside than on what is printed on the dial. Take one apart on this page — every component is drawn to the proportions of the real one.
1912Founded in Genève
218Components per caliber
38 hAt the bench, each watch
9Watchmakers. That is all.