Longines Vintage Chronograph 13ZN

About this reference

The Longines 13ZN chronograph was produced from 1936 until approximately 1947. Collectors prioritize this reference for its 13ZN caliber, which was the first serially produced wristwatch movement to feature a flyback function. In 18k yellow gold, the watch typically features a multi-step bezel or a "tre tacche" case construction with a diameter ranging from 34mm to 38mm. Dial configurations often include tachymeter or telemeter scales in enamel or silvered finishes. Due to the movement's technical complexity and the brand's transition to outsourced calibers later in the century, these pieces are considered significant historical artifacts. Current secondary market prices for 18k yellow gold examples generally range from $25,000 to over $100,000 depending on case size and dial originality. A notable 1940s oversized 38mm yellow gold variant reached a hammer price of approximately $120,000 at a major 2022 auction.