Rolex
Rolex SA () is a Swiss luxury watchmaker. Originally founded as "Wilsdorf and Davis" by Hans Wilsdorf and Alfred Davis in London in 1905, the company registered "Rolex" as the brand name of its watches in 1908. In 1919, the company moved its base of operations to Geneva, Switzerland in order to avoid heavy taxation from a recovering post-war Britain, and "Montres Rolex S.A." was registered as the new company name by Hans Wilsdorf in Geneva in 1920. Since 1960, the company has been owned by the Hans Wilsdorf Foundation, a private family trust.
Rolex GMT Master II
In 2007, Rolex introduced the ceramic bezel insert to the GMT-Master II range, replacing the aluminum insert (colors created using an anodizing process) that had been used since 1959. While ceramic is much more scratch resistant than aluminum, Rolex initially could not continue to produce the two-color bezel used to distinguish between the day and night times of the second time zone, particularly the color red which could not be created satisfactorily in ceramic. In 2013, Rolex created the first two-tone ceramic bezel, in blue and black, for the steel GMT-Master II nicknamed “Batman”. In 2014, Rolex was able to create the red color on the ceramic bezel for the new incarnation of the red-and-blue "Pepsi", although in order to recoup the higher cost of this bezel it was only initially available on the white gold GMT-Master II. All of these GMT-Master II watches use the Caliber 3186 movement.