THE QUEST FOR CHRONOMETRIC PRECISION
1910 – 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.
1914 – 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 – Rolex moved to Geneva, a city renowned internationally for watchmaking. Montres Rolex S.A. was registered in Geneva in 1920.