First of all, a quartz watch is an electronic watch that uses a generator and electronic components to keep time, while a mechanical watch is a mechanical watch that uses gears and a balance wheel to keep time.
Secondly, the running accuracy of quartz watches is higher than that of mechanical replica watches, because quartz watches use electronic components to control time, while mechanical watches use gears and balance wheels to control time, and their accuracy will be affected by friction and the external environment.
Again, the maintenance of quartz watches is much easier than mechanical watches, because quartz watches only need to replace the battery regularly, while mechanical watches need regular cleaning and maintenance to ensure their accuracy.
Finally, there is also a big difference in the price of quartz watches and replica mechanical watches. The price of quartz watches is relatively low, while the price of mechanical watches is higher, because the production of mechanical watches is more complicated, and their precision is also higher.
To sum up, quartz watches and mechanical watches are two different kinds of watches. They are very different in operating principle, precision, maintenance and price.