Why the Rolex Oyster watches call Oyster ?

“Oyster” is the Oyster case meaning. Oyster case the sources from October 30, 1925 Speaking of, was in La Chaux de Fonds, the German craftsman Paul Penegaux and Georges Peret invented a crown patent (patent code: 114948), which is a way to prevent moisture from entering the case of the crown seal technology, the use of springs and spiral tube first substantive prevent water vapor from the crown enters the case.
Later, Mr Rolex founder Hans transferred to convince them of the patent and patent applications originally in Switzerland to re-apply in the UK, using the name of Hans, patent No. 260,554. The reason since “Oyster” the name, because Hans in an oyster dinner, open a lid when accidentally got the inspiration. July 29, 1926, he registered the name in Switzerland, two months later in London were registered. February 28, 1927, Hans was randomly as Oyster registered names of four different languages​​, namely Huitre (French), Auster (German), Ostica (Italian) and Ostra (Spanish).
Oyster case is composed of a four-part structure, the frame is octagonal, which set with a cylindrical rotary screw barrel, on the circle and the back cover is the way by rotating the locking screw and rotary drum would like to link this then spin died in octagonal frame on the box and on the inside back cover of each of the two seals made of soft metal to increase the tightness of the crown and the case is connected through another small screw lock cylinder and connections, two lugs are welded on a metal wire, used to install a metal strap.see more replica horloge and horloges Omega Classic