Single Pusher Chronograph Black Gilt Dial in Yellow Gold

In fact…

Longines made some of the best chronographs in the 1940s, most notably the manual-winding Calibre 13ZN which is considerably a resident in the Hall of Fame of Chronographs. It is legendary and any watch collectors would want a piece of 13Zn in their collection. The 13ZN was introduced in 1936 with their patented flyback function on a Chronograph (note ‘patented’ in italic). Then came the war which didn’t halt the Swiss watchmaking industry as they fired their engines to produce watches for the military.