A Legend Returns

More than 50 years after the iconic Calibre 321 was last produced, OMEGA brought the movement back in 2019. The original Calibre 321 was the first movement ever used in the OMEGA Speedmaster and was famously used in a variety of models including those worn on the moon.

The column-wheel design is also notoriously beautiful and intricate. Therefore, to bring this “collector’s favourite” back into production for the modern era, OMEGA utilised a diverse group of Swatch Group experts, including researchers, developers, historians, craftsmen and watchmakers. Based on historical research, digital scanning and original movements, the team reconstructed the Calibre 321 as accurately as possible and assured its future for a new generation of fans.