1955
- René Bannwart and Simone Ries found the watch company Corum in La Chaux-de-Fonds and specialize in the production of extravagant wristwatches.
- The company Seiko brings its first automatic wristwatch on the market.
- Factory No. 1 is established in Shanghai, China.
- Universal Geneve introduces the Polarouter at the Basel Fair.
- FHF begins mass production of low-cost "Standard Calibres".
- Deaths: René Ditesheim of Movado, P.-F. Cuanillon of Kulm, Emile Bleuer of UBAH, Herbert Schwarz of Schwarz-Etienne, Fritz Pauli of Ed. Kummer, Fritz W. Koch of Koch & Cie, Paul Adnet of Omega's Ultimo in Brussels, Henri Juillard of Cortébert Watch, Adrien Brandt of Omega