The Omega Caliber 321 represents a pinnacle of Swiss watchmaking heritage. This legendary movement, produced from 1946 to 1963, powered some of the most iconic timepieces in horological history, including the watches worn during the Apollo missions. Known for its robust construction, exceptional reliability, and elegant design, the Cal. 321 features a column-wheel chronograph mechanism that delivers precise timekeeping and smooth operation. Collectors and enthusiasts prize examples of this caliber for their superior craftsmanship and enduring performance. A testament to Omega's commitment to precision engineering and innovation.