I. The watch is not gone
There are a number of reasons for not moving the watch, such as bumping, faulty core gears, magnetizing the watch, drying up the mud with long holds, etc。
Mechanized watches can normally be divided into the following two categories: manual and automatic. The manual chain watch is based on manual power, and if the watch suddenly stops, you have to consider the lack of power. Manually chained watches should, as far as possible, be stringed once a day at the same time, allowing them to function with sufficient energy for the next 24 hours。
The principle of automatic uplinking of watches is to operate on the role of an automatic uplinking body that can move in any direction. A fully automated watch should normally be worn for more than eight hours per day in order to complete the hair bar, but it is not absolute. Thus, if they are not worn for a long period of time, or if they do not have enough exercise after wearing them, they also result in the mechanical watch not to go. In such cases, it can be resolved manually. It is worth noting that the automatic string watch, which has not been worn for more than 40 hours, should be worn again, with 20 laps of the watch crown to re-start the core drive system。
If the mechanical watch was not left because of insufficient kinetic energy, it would have failed and would have to be sent to a professional maintenance staff for repair. Remember not to speak of mechanical forms。
Whether by hand or automatically chained, the rationale is to operate with mechanical gears and hair strips, which inevitably produce friction, so the necessary refuelling and lubrication is used over time to reduce the rate of wear and tear on parts。
Ii. Mechanical watch error criteria
The permitted daily error in the general watch is about 30 seconds, the specific error in the watch is based on the core used in the schedule, and is based on national standards if the watch error criterion is not sufficiently specified。
The watch at the swiss observatory level also varies from four to six seconds a day! Up to tens of thousands and hundreds of thousands. I have a watch for the swiss astronomical observatory, which varies by about 5-6 seconds a day. The swiss watch is good for the stability of processes and machines, not precision。
How many chords on the three mechanical watches can be filled
Generally speaking, the normal upper string is 30 strokes, and it's almost full, but the watch doesn't matter. You just have to go up until you can't move. For automatic mechanical watches, the majority of automatic mechanical watches can be issued with their hands, especially when they are first worn or stopped and then later worn. And you know, because automatic watches are "satisfactory strings," you'd rather have more than fewer strings on automatic watches, and you might want to have a few more, like up to 40。
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