A normal waterproof watch can only protect against water splashes, while a professionally waterproof watch can withstand immersion in water at different depths.
OEM and ODM are two common ways to customize watches.
The mechanical principle of the watch is complex and precise, in which each component plays a vital role.
Dial, Case, Movement, Strap or Bracelet, Crown
Mechanical Watches. Quartz Watches, Smart Watches, Complicated Watches
Story of Rolex
Story of Cartier
Watches care, watches maintenance
Watch daily care.