Lot 158

Longines

Aviator

An extremely rare vintage single-pusher pilot's chronograph with legendary Longines calibre 13ZN, sold on June 22, 1940 to the company Casullo, which was at that time the Longines agent for Panama - with Longines extract from the archives

Sold

The very first series of chronograph calibre 13ZN was designed as a single pusher model without flyback function and works similar to the first chronograph calibre ever made, which was calibre 13.33Z developed in 1913. In 1936 Longines began producing calibre 13ZN, the first chronograph mechanism with flyback function and two pushers; the company also applied for a patent for it. This particular type of chronograph was designed specially for pilots, who very much depended on ease of use for zero-setting or starting and stopping their chronographs. After a production run of approximately 11 years, calibre 13ZN was replaced by calibre 30CH in 1947 – which would eventually become a cult icon.