Manual mechanical watch
Manual mechanical watch, hand chain machine core, by turning the handle of the watch, the main spring in the watch machine core is full of chords, after the spring is fully released, the gear is driven to run, and the pointer is driven to go.
Manual mechanical watches usually turn the crown to tighten the winding in the watch. The winding system releases kinetic energy to drive the timing function of the watch. All these processes are accomplished by mechanical principles and structures. Full-winded watches can usually walk for more than 30 hours, up to eight days or more. If the watch keeps running, it needs to be tightened at any time; however, excessive tightening will cause damage to the watch, so it is usually recommended that the watch should be tightened only once a day, or even at the same time every day. The reason is that the temperature at different times will have an impact on the clockwork, so that the watch can be better maintained.
Spread the clockwork to ensure the normal operation of the meter and the accuracy of running time. Although the watch is shockproof, it is easy to break the tip of the pendulum or the Journal of the gear train when the external impact is strong, and it can also make the vibration of the fast and slow needles affect the travel time.
Manual mechanical watch chain direction? Last few circles
When the crown is rotated clockwise or counterclockwise, it is not clear. Generally, we mean that when the front of the watch is up, the right hand rotates the crown, and the thumb turns up or down. In fact, the direction of the tube can be simply stated in two cases. The first is that when the crown is not pulled out, the upward chord should be the upper chord, while the downward chord should be empty, without any effect, and the random rotation has no effect. The second case is to pull out a section. At this time, the upper crown should rotate counter-clockwise and the lower crown should rotate clockwise. But this is not absolute. Many times the crown with dates can pull out many sections, sometimes the first section adjusts the time, sometimes the second section adjusts the time, so it may turn counterclockwise downward minute and clockwise upward minute. In this case, if there is a calendar or phase, it is recommended not to turn the crown counter-clockwise on a minute hand, especially when the calendar is beating. It may break the fork of the calendar or the moon. If there is no calendar or calendar, it doesn't matter. It's not a big problem to adjust the time clockwise.
As for the inner structure of counter-clockwise rotating crown, it is nothing more than a single clutch and gear combination. When in neutral, the forward turn drives the gear set, the reverse one-way clutch works and idles; when adjusting the time, the power of the spring is cut off and the forward and reverse transmission are the same. The key is that if the calendar fork is moving, the fork mechanism has a dead point. Many times, the forward motion is no problem, and the reverse motion is no problem, but half of the reverse motion will encounter a dead point, which is easy to bend and damage the fork. It is possible that the calendar will not move in half, or simply not. As for the phase of the moon, it is impossible to adjust the table during the period of the phase of the moon, neither positive nor negative. It works like a calendar.
The upper chain has only one direction and the other is idle. How many laps does it usually take? This depends on the power storage of the watch. If it is a 38-46 hour power storage rule, it usually rotates 30-40 times. This is a vague concept. Now the ETA automaton core has overload protection, and when it's full, it's free to go up the chain. So rest assured. There are also some manual watches without overload protection, full of strong crown will not move.