On offer is a Longines Conquest Automatic from 1974, in very good original condition. This watch features a 431 calibre with a high number of beats per hour of 36,000, one of the best movements Longines ever made. The movement was just fully serviced and it functions accurately. The watch comes with a beautiful brown leather vintage strap and with a Longines extract of the archives. This document by Longines confirms that the watch was sold in this configuration in 1974. - Stainless steel case, 37 mm without crown - Movement Longines 431: 36,000 bph, automatic, date and central seconds Fully service 6-2019. - Reference: 1523-1 - Serial number of case: 166424xx - Serial number of movement: 509399xx - Age: 1974 - Insured shipping up to €500 Balanced Watches. I am a watchmaker, enthusiast and collector. All of my watches are inspected thoroughly and are serviced prior to sale if necessary.