Longines Watch Conquest L3.258.0.89.6. Longines Watches Conquest is the quintessential expression of the brand's sporting elegance. This exceptional material combines timeless glamour with novel technical features. A subtle blend of performance and elegance, the Longines Conquest includes technical features that meet the requirements of the most demanding sportsmen and women. Both sober and sophisticated, these models are guaranteed to catch the eye at the most fashionable soires as well as in the stands of prestigious horse races.