How does the mechanical alarm clock work?
The tension in a wound spring powers a lever which transfers its momentum to a system of precisely engineered gears. These gears work the second, minute, and hour hands. A balance wheel keeps the “ticking” of the gears in a regular rhythm. The alarm is set off when the preselected “wake-up” time has been reached by the hands. These release the bell’s alarm hammer which also is controlled by a spring wound mechanism.
