Conceived in 1948 to commemorate Omega's 100th anniversary, the Seamaster began as an elegant water-resistant dress watch leveraging innovative O-ring gasket technology derived from submarine applications. Drawing from Omega's military watches designed for the British Royal Navy during World War II, the Seamaster embodied a new philosophy: practical timepieces for everyday professionals and weekend sailors. From this modest, dressy beginning, it evolved into what is today the longest-running watch collection still in active production.