Omega De Ville chronograph steel automatic Kal. 3313 Ref. 4850.50.31 | 2102151
Omega De Ville chronograph steel automatic Kal. 3313 Ref. 4841.31.32 | 2105569
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