A blaze of records for quartz calibres

1981

 In 1981, Jaeger-LeCoultre Calibre 606 with date display and centre seconds was the thinnest in its category. The following year, the 601 earned the title of the world's thinnest, at 1.8 mm high for a diameter of 11.7 mm. In 1982, Jaeger-LeCoultre bettered its own record with Calibre 608: a mere 1.6 mm thick! In 1987, the Manufacture brought out the pioneering Jaeger-LeCoultre 630 Mecaquartz Calibre, a hybrid quartz and mechanical movement, inside one of the smallest chronographs in history.