It doesn't make much sense to require the watch's second hand to be fully accurate

Most people buy quartz watches for their high accuracy in timing, but in use, they find that the second hand of NOMOS watches often can't keep up with the time scale when it is running. In fact, this is a common problem with quartz watches. Even high-quality, big-name Swiss replica watches may not necessarily avoid this problem. Whether the second hand of a quartz watch can be aligned with the scale has nothing to do with the quality of the watch. Just ask, when you stretch out your wrist to look at the time, is it the second hand or the hour and minute hand at first glance? Generally, you will only notice whether the second hand is moving when you find that the hour and minute hands are very different.

The minute hand and hour hand of the NOMOS watch belong to a dead mesh, which means that the positions of the minute wheel, the span wheel and the hour wheel are relatively fixed, and there will be no misalignment or movement under normal circumstances. The situation is different between the second wheel and the minute wheel, because the minute wheel will "slip" and will appear as soon as the needle is set. In order to ensure the normal meshing and transmission between the gears is smooth and smooth, the modified cycloidal tooth profile is basically used. The gear teeth have a meshing angle and a meshing angle, and there must be backlash, otherwise there will be top teeth or scraping. . The backlash of a pair of gears is very small, but it becomes several pairs of gears, and the backlash is superimposed together, it becomes obvious. After a very small idling angle, the hand behind will be pushed. This often occurs after the hand is moved in a certain direction. The most typical case is a two-hand quartz watch. If the minute hand indication is not easy, it will always be half a minute slower.

In addition to the above operational reasons, there are also production and assembly factors. If the second hand has a fixed amplitude deviation on each scale, this is an installation problem. If the second hand is aligned on one part of the scale and the other part is deviated, then there is a tolerance in the manufacture of the watch dial. Once these factors are formed, manual adjustment is useless.

After all, it doesnĄ¯t make much sense to require the second hand of a watch to be fully accurate. Except for professional timekeeping fake watches, it needs extremely fine gear teeth and extremely high swing frequency, and it must be able to stop seconds. Only when the second hand is stopped, can the reading be accurately observed. Whether it is a high-priced or popular quartz watch, whether the second hand is aligned with the scale is not the only criterion for judging whether it is qualified, because the watch standards of the major watch producing countries in the world do not have a relationship that the second hand of a quartz watch must be aligned with the scale.