• The first LeCoultre Reverso watches are produced.
• Gérald Charles Genta is born on 1 May 1931 in Geneva.
• The first Swiss Watch Fair in Basel opens April 11, with 32 companies exhibiting.
• Rolex introduces watches with automatic winding (called “perpetual”).
• The Citizen wristwatch brand is launched in June.
• On August 14, ASUAG is formed by Ebauches SA as a federation of Swiss watch companies.

← 1930 | 1932 →