Lume Workshop / Interactive model

The rotor in motion

Move the watch and follow the energy from the rotor through the reverser and gear train into the mainspring.

The model loads only when you start it.

An original educational illustration, not a complete simulation of a particular calibre.

How does wrist motion store energy in the mainspring?

Follow the rotor and winding train. The oscillating weight does not drive the hands directly.

The diagram isolates a principle; manufacturers use several different automatic-winding systems.

Understand how it works

Find the detailed explanation, technical background and sources in the accompanying article.