1969 Hamilton Automatic "Intra-Matic Micro-Rotor date swiss Wristwatch with Roman numeral dial DialThis Watch A beautiful dress watch by Hamilton Watch Co. with an early micro rotor automatic Hamilton unlike the conventional central, full rotor, which was the more common caliber making this quite a rare item! This caliber was a collaboration between Buren & Hamilton and was much like the collaboration between them and Heuer. This movement is marked Buren 1282 which is the equivalent to Hamilton 682. Basically it's the same caliber, co produced.