1950s Longines Cal.30CH Ref.6592 "Spillino" 37mm Water-resistant Flyback Chronograph

This is a rare "Spirino" 37mm screw-back chronograph from the mid-1950s, equipped with the renowned Longines Cal. 30CH movement featuring a flyback function. The "Spirino" is a scarce screw-back model distinguished by its small pushers, and its uniquely streamlined case design is characteristic of this era, unlike the styles seen in the 1930s–40s or later models. The luminous dial has developed a beautiful patina over time, adding to its charm. Longines' in-house chronograph calibers are legendary in watch history, having been firmly established as masterpieces, and they will undoubtedly continue to be highly valued and passed down through generations.