The Décalibre Journal
No. 1 · November 2026 · La Chaux-de-Fonds – Paris · Published three times a year
Issue No. 1
« Editorial for Issue No. 1 of the Décalibre Journal: a bridge between brand communications and workshop literature, every four months. »
Contents
01 · Editorial
Why a journal, and why now
Editorial for Issue No. 1 of the Décalibre Journal: a bridge between brand communications and workshop literature, every four months.
02 · Movement of the month
The Peseux 7001: the art of simplicity and slimness
Movement of the month: the Peseux 7001 (ETA 7001), a hand-wound movement measuring 23.30 mm by 2.50 mm, its architecture and workshop pitfalls.
03 · Pioneers
Antide Janvier, the Jura child prodigy and the mechanical heavens
Pioneers: Antide Janvier (1751–1835), the watchmaker from Franche-Comté known for moving spheres, planetary clocks and decimal time.
04 · Workshop tools
The timegrapher: listening to the mechanical heartbeat
Workshop tools: reading rate, amplitude and beat error on a timegrapher, and interpreting its trace.
05 · History of the escapement
From the verge and foliot to the pendulum revolution
History of the escapement: the verge-and-foliot escapement, its limitations, then Huygens’ pendulum in 1656.
06 · The right word
Isochronism
The right word: isochronism, the property of an oscillator whose period does not depend on amplitude, and ways to approach it.
07 · A student’s question
“My watch suddenly gains 20 minutes a day: what happened?”
A student’s question: why does a watch suddenly gain 15, 30 or 60 minutes a day? The magnetised hairspring, its diagnosis and demagnetisation.
08 · Mechanics & Environment
Cold, oil and the balance wheel: what happens inside a watch in winter?
Mechanics & Environment: winter temperature changes, oil viscosity and hairspring elasticity — what cold does to a movement.
09 · Trends & Architecture
Jumping hours: mechanics and 10 models to discover in 2026
How jumping hours work and ten contemporary interpretations, with their architectures, displays and manufacturers’ references.
10 · Événement
Festival Suisse de l’Horlogerie : Au cœur du geste, de l’indépendance et de la transmission
Pensé comme une parenthèse culturelle au sein de la métropole horlogère classée à l’UNESCO, le Festival Suisse de l’Horlogerie réunit créateurs indépendants, artisans d’art et écoles professionnelles. Un événement qui place l'échange direct et la démonstration vivante au centre de la visite.