Estimate 2,500 - 6,000 €
Price Realised 8,200 €
a lot of the last auction!
Steel, push back, flexible lugs.
very good, refinished.
very good, capable of running, cleaning recommended.
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. The chronographs were designated "transitional 13ZNs"; they featured enamel dials and are very hard to find today.
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.