1930

• Patek Philippe manufactures the first watches with perpetual calendar in single copies.
• The companies Omega and Tissot unite at the initiative of Paul Tissot, who is also managing director of Omega, to the SSIH group, which later becomes the nucleus of the SMH and then of the Swatch Group.
• Lip produces the first tourbillon wristwatch.

← 1929 | 1931 →