Landeron 185

The Landeron Cal. 185 is a sophisticated full-calendar chronograph movement from the Cal. 48 family, produced in the 1960s. It combines the 'JI' hammer cam-switching chronograph with a complete triple-date calendar featuring day, date, and month indications. The increased complexity results in a thicker movement (7.42mm vs 6.2mm for the base calibers). Calendar adjustment is handled by three case-mounted pushers at 1:30 (month), 4:30 (date), and 10:30 (day). The Cal. 186 variant adds moon phase indication.