Most 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:

• Swiss movement: Watch movements have many parts to be assembled into one workable unit. "Swiss movement" means that over 50 percent of the completed movement was assembled in a Swiss factory from Swiss-manufactured parts. This is true of mechanical, automatic and quartz movements. The case stamps that identify the Swiss movement use various terms including Swiss quartz, Swiss automatic or Swiss auto, and, simply, Swiss.
  
  
  
  This definition also applies to movements originating in countries other than Switzerland. For example, a watch with Japanese movement usually will have a stamp of "Japanese", "Made in Japan" or "Japan movement". 
  

• Swiss-made: 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.