Longines Hydroconquest L3.696.4.59.2 Since 1832, Longines has been producing timepieces that have captured the essence of elegance. The brand, based out of St. Imier, has been heavily involved in gymnastics, automobile racing, and the winter Olympics. In 2010, the brand launched the Hydroconquest Collection, which became a bona fide overnight success. The Hydroconquest is primarily a diving watch ...