The accuracy of the mechanical watch is mainly determined by the stability of the vibration frequency of the balance spring. Because the watch will be affected by many factors inside and outside during the use of the watch, the watch will have errors in travel time. Careful adjustment can only make the error relatively Shrinking does not completely eliminate the error. Therefore, as long as the watch's travel time meets the travel time accuracy index of the watch, it is a qualified watch.
The mechanical watch error is larger than that of the quartz watch, and the quality of the manufacturing is high and the movement inside the watch is susceptible to gravity. Usually the error of the mechanical watch is calculated by how many seconds per day, and the error of the quartz watch is calculated by how many seconds per month. The mechanical watch error can't be zero. Pay attention to maintenance and repair the watch in daily life, and the error will not be much.
The accuracy of the mechanical watch's travel time is mainly ensured by the frequency stability of the balance spring. Due to the influence of many factors inside and outside during the use of the watch machine, the balance spring vibration is caused by the vibration of the balance wheel, which causes the watch to have an error when it travels. The meticulous adjustment can only make the error relatively small, but can not be completely excluded. Therefore, the watch only needs to meet when walking. The accuracy indicator of the table travel time is the qualified watch. The watch adjustment does not need to be adjusted frequently. Anyway, after adjusting it once, it is only fine-tuned.