Ron Gordon Watch on X: "Omega caliber 3313 auto wind Co-Axial column-wheel chronograph movement based on Piguet 1285, used in the Speedmaster's and Seamaster divers. https://t.co/i46spRJcKa" / X
Omega caliber 3313 » WatchBase
Ron Gordon on LinkedIn: Omega caliber 3330 is a chronograph movement with column wheel and…
Vintage Omega Seamaster co-axial cal. 3313 during cleaning - Manhattan Time Service - Watch Repair
Omega Cal.3313 Co-Axial Chronograph Automatic Movement | WatchCharts Marketplace