This is a rare Longines one piece s/s case 35 mm. Automatic movement Cal. 341. From Archive, it was invoiced on September 1962 to Longines/Wittnauer official company for USA market, and then locally assembled. Very rare piece, the inner case is engraved 2579 341 (341 for caliber). Silver stunning sector dial with a minutes central track, applied indexes and window date at 12. The watch is overall in mint condition, never touched, comes with a full set including box, warranty blank and tag.