1960s Carl Bucherer Swiss jeweler brooch made in 18K yellow and white gold. Hallmarked: 750 CB. Note: Carl F. Bucherer is a Swiss watch company based in Lucerne, Switzerland, which manufactures luxury mens and womens mechanical watches. Since its founding in 1888, the company has been wholly owned by the Bucherer family, making Carl F. Bucherer one of the oldest luxury Swiss watchmakers continuously held by the founding family. Carl F. Bucherer Fine Jewellery, Gifts And Accessories For Women. Total weight: 4 g.