An automatic movement is a mechanical movement powered by the motion of the wearer's wrist.

As the watch is worn, a weighted component called the rotor rotates and transfers energy to the mainspring. The stored energy is then released gradually to power the movement and keep the watch running.

Most automatic watches can also be wound manually through the crown when additional power is needed.

Unlike quartz watches, automatic movements do not require a battery and operate through a complex system of gears, springs, and mechanical components.

Regular wear helps maintain the power reserve and ensures optimal performance.