Men's automatic mechanical watch classic left hand black green anti-water 40mm stainless steel folding buckle, Camel

A mechanical watch is different from a quartz watch in that the second hand of a mechanical watch moves continuously. Because the mechanical watch movement is complex, the travel time error is generally allowed within the range of ±45 seconds Fine workmanship, easy to use, winding can walk for more than 36 hours., The movement has long service life. The appearance is thicker than quartz watch.syi