watch movements are designed and manufactured in Switzerland or Japan.
Traditionally, Swiss watchmakers set the standard for quality,
especially for mechanical movements; however, since the 1980s,
Japanese-made movements have caught up to the Swiss in quality.
Chinese-made movements also have increased in quality in recent years.
Watch manufacturers label the origin of the movement with a stamp on
the watch case and, sometimes, on the dial. Here is a brief explanation
of the terminology:
A Swiss-made movement must have Swiss parts, be assembled in
Switzerland, and then be placed in the case in a Swiss factory. The case
itself does not need to be manufactured in Switzerland, although most
high-end watches feature Swiss-made cases.