JB factory is a top big replica watch factory in China. JB factory is a factory which specialize in making tourbillon movement. The most famous style tourbillon movement of JB factory is Blancpain tourbillon movement and Blancpain tourbillon movement is also the most popular one. JB factory has been committed to the super high-end replica of tourbillon watches. Its high technology has been widely recognized by the market. Although JB factroy are not many products launched, it can be said that each one is a fine work. JB Factory Replica Watches Hot Sales.