As one of the early phase famous Swiss watch brand into china, Rolex enjoy high popularity in the country and even many Chinese think Rolex is the best watch brand in the world, like Patek Philippe, Vacheron Constantin and other watches are not high visibility than Rolex.
Indeed, Rolex brand has a very high inimitable symbol, crown-shaped logo, unique appearance; all of these show its distinctive features. So many middle and low watch brand imitate the appearance of Rolex.
But for the inimitable symbol, Rolex is known as its oyster watchcase and this is an important symbol of waterproof performance for Rolex brand.
Oyster watchcase is important milestones in the history of watch making which invented by rolex in 1926, equipped with patent rotary outer ring system, bottom and middle watchcase crown, and this is the first waterproof watchcase for watch in the world.
According to relevant data show, the leakproof structure of oyster watchcase can make sure the water resistant to 100m (300feet) of this watch, and the submariner series watch is water resistant to 300m (1000feet), while Rolex Rolex Deepsea is water resistant to 3900m (1.28 thousands of feet).
From the professional view, dispose the watch-head is very important for waterproof watch, the watch-head of rolex is made of nearly 10 parts, and use screw fixed on the circular pipe and become an indispensable part of watchcase. This is the first time of inventing waterproof watch crown in watch making history, the watch crown is not only can make the watchcase completely sealed also can operate the main function of this watch, pull out the crown can adjust time, date, week or time zone display. Also can according to your need to manual chain
In addition, the watch mirror of rolex with convex lens effect and this is a feature of its brand watch. The little convex lens invented by rolex in early 1950s
