How do ladies' mechanical watches work?

　　When ladies wear a mechanical watch, the various movements of the wrist wind the watch. Do you understand how a ladies' mechanical watch actually works?

　　In some mechanical movements, the automatic rotor only winds when rotating in one direction, spinning freely in the other; whereas other movements can wind the mechanism in both directions. These are commonly referred to as "semi-automatic watches" and "fully automatic watches".

　　Currently, a men's automatic watch with a fully wound mainspring can normally run for about 36 hours when left stationary.

　　Better ones can reach over 40 hours. If you wear it normally every day, the mainspring will constantly receive energy replenishment. Although it may not be fully wound, the watch will run normally overnight or when set aside for a short time, only stopping if left unworn for a relatively long period.

　　Generally speaking, a fully wound automatic mechanical watch can run continuously for around 36 hours. Under normal daily wear, it can operate for around 15 hours. If it is left unworn for longer than this or if there is insufficient movement (due to low physical activity by the wearer), the watch will stop. It should be fully wound manually before wearing it again. For the first use or after a long period of non-use, wind it manually by turning the crown more than 30 times.