Why Do Dive Watches Have Helium Escape Valves?This is a highly specialized question! The helium escape valve (HEV) is a critical yet often misunderstood feature on top-tier professional dive watches.

Sea-Gull ST19 Movement: History and DesignThe Sea-Gull ST19 movement is a highly significant and legendary calibre in Chinese watchmaking history. It is China's first independently developed and m

Discover the sports quartz watch for running that beats the competition. Explore top features and durability.

Compare quartz watch vs mechanical watch movements. Discover pros, cons, and accuracy tips. Choose a perfect timepiece!