A clockwork alarm clock, also known as a mechanical clockwork alarm clock, is a type of mechanical alarm clock that uses the elastic deformation generated by the upper winding, the energy released by the recovery deformation of the winding, or the gravity of a heavy object as energy to achieve the alarm function. So how to use a clockwork alarm clock? The use of a clockwork alarm clock is not difficult:

On the back of a clockwork alarm clock, there are usually two rotatable buttons. Turning these two buttons can adjust the clockwork. The two clockwork, one for displaying the time of the clock and the other for displaying the alarm bell, can be adjusted to the time when the alarm clock rings through the knob (usually, there is a significant difference in the color, length, and display time of the alarm needle, so be careful not to adjust it incorrectly). Then, tighten the clockwork of the alarm clock, If it is difficult to wake up, it is recommended to tighten the spring a bit until it can no longer be twisted, otherwise the energy of the spring will be used up and the alarm will not sound. After tightening the spring, the alarm clock will ring at the set time. When the energy of the spring deformation is used up, the alarm clock will stop ringing.