1, self-winding mechanical watch means that the automatic disk at the bottom of the movement swings left and right to generate power, which can drive the spring to wind, mainly swinging between the wrists after being worn on the hand. Manual winding is not required. Compared with the manual winding mechanical watch, it is safer, more reliable and more stable.

2. Automatic mechanical watch is an improvement of manual watch. A balance wheel is added to the dial, which mainly uses the automatic disk at the bottom of the movement to swing left and right to generate electricity, thus driving the clockwork to generate energy, while the automatic winding list automatically winds the clockwork through the swing between wrists, which can improve the continuous energy.