Jaquet Droz 1677

Caliber 1677 is a 5.5 lignes automatic movement launched in 1960 by Jaquet Droz, belonging to the Standard Coopérative family. Produced through the 1960s, it was a cooperative-sourced movement rather than in-house. The caliber was used primarily in dress watches from the period before being discontinued by the late 1960s.