1905 HANS WILSDORF
1908 GENIUS IN FIVE LETTERS
1910 THE QUEST FOR CHRONOMETRIC PRECISION
Rolex first concentrated on the quality of the movements. The relentless quest for chronometric precision rapidly led to success. In 1910, a Rolex watch was the first wristwatch in the world to receive the Swiss Certificate of Chronometric Precision, granted by the Official Watch Rating Centre in Bienne.
Four years later, in 1914, Kew Observatory in Great Britain awarded a Rolex wristwatch a class “A” precision certificate, a distinction which until that point in time had been reserved exclusively for marine chronometers. From that date forward, the Rolex wristwatch was synonymous with precision.
1919 GENEVA
Rolex moved to Geneva, a city renowned internationally for watchmaking. Montres Rolex S.A. was registered in Geneva in 1920.