"Oyster" means oyster shell. The origin of the oyster case should start from192565438+1October 30th. At that time, in La Saud, German craftsmen Paul Penegaux and Georges Peret invented a crown patent (patent code: 1 14948), which is a crown sealing technology to prevent moisture from entering the watch case. This is the first time to use springs and coils.
? ? Oyster shells consist of four parts. The outer frame is octagonal, and the inner sleeve is cylindrical spiral cylinder. The upper ring and the rear cover are connected with the spiral drum through rotation and locking. Then melodic death metal has two sealing rings made of soft metal on the octagonal outer frame, the upper frame and the back cover to increase the sealing performance. The crown is locked and connected by another small spiral tube connected with the shell, and the two lugs are welding wires.
Later, Mr. Hans, the founder of Rolex, persuaded them to transfer the patent, and re-applied for the patent originally applied in Switzerland in Britain, using Hans' name and patent number 260554. The name "oyster style" comes from Hans' accidental inspiration when he opened the oyster lid at a dinner party. On July 29th, 1926, he registered this name in Switzerland and in London two months later. 1927 On February 28th, Hans randomly registered the names of oysters in four different languages, namely Huitre (French), Auster (German), Ostica (Italian) and Ostra (Spanish). This is why there are many words "oyster style" in the name of Rolex watch series.