Longines 410

The Longines 410 is a manual-winding, open-face caliber movement with stem winding and setting mechanisms, introduced in 1945. It features a small seconds subdial at the 6 o'clock position. The movement shares its fundamental architecture with the Longines 1066, 1073, and 1074 calibers, though it differs in bridge configuration, crown-wheel bearings, and click design. This was a period-specific movement, primarily fitted to watches produced around 1945.