What an automatic movement really is

An automatic movement is a self-winding mechanical system that uses the kinetic energy of the wrist to keep the watch running. Unlike quartz watches, there are no electronic components: every impulse is generated through a precise balance of masses, friction and adjustments.

Technical note: the efficiency of an automatic movement depends not only on the design, but also on the quality of assembly and fine regulation.

How energy is generated and transmitted

At the core of the system is the oscillating weight, which rotates freely following the movement of the wrist. This rotation winds the barrel through the gear train, storing energy in the mainspring.

• The rotor converts motion into energy
• The barrel stores and releases the power
• The gear train transmits energy to the escapement

Insight: a longer power reserve requires even more precise control of the torque delivered.

Balance wheel, escapement and real accuracy

The accuracy of an automatic movement arises from the interaction between the balance wheel, hairspring and escapement. Every microscopic variation directly affects the daily rate of the watch.

It’s not just about “seconds per day”, but about long-term stability, shock resistance, and performance in different positions.

Workshop note: a well-executed fine regulation remains noticeable even after years of use.

Why every detail truly matters

In the workshop, we see what often remains invisible: mechanical play, abnormal friction, incorrect lubrication, and imprecise adjustments.

Two movements that look identical on paper can behave very differently over time. This is where craftsmanship experience truly makes the difference.

A good automatic movement is not judged only immediately after servicing, but after thousands of hours of operation.