Self winding mechanical movement beating at 25'200 vibrations per hour, with a monocrystalline silicon balance spring power reserve up to 72 hours. 18 karat gold medallion with fish, water resistant to 5 bar, scratch resistant sapphire crystal, with several layers of anti reflective coating on both sides. Green lacquered polished dial, swiss super lumi nova®.stainless steel bracelet, with double security folding clasp with micro adjustment system. An evocation of daring and creative spirit, the conquest collection was the first longines watch line to have its name protected by the swiss federal intellectual property office in 1954. A tribute to the first conquest models launched over 70 years ago, the conquest heritage line will appeal to all lovers of vintage design. The conquest heritage watches seamlessly blend the classic style of the 1950s with modern watchmaking technology.