What is the principle? It's actually a semi-return function. Different from other "reincarnation" flying back once, it gives you a "reincarnation" every hour. Every time the "reincarnation" gear is driven, it rotates for five hours, and the display mode on the dial is clockwise movement 150 degrees, which is only the beginning of the next "reincarnation". Why is it designed at an angle of 150 degrees? Let's do a math problem. 150 degrees times 12? 1800 angle, the angle value of a circle is 360 degrees, and the number 5 can be divided equally. Jumped 12 times and then returned to the original point to avoid getting out of control.
I have to say that farmland is really a watchmaking genius with fantastic ideas.