Cal. 2 is a 15.5 ligne (34.7 mm) column wheel monopusher chronograph movement produced by Landeron in the 1930s. It is similar to the two-pusher Cal. 3.
Cal. 2 is a 15.5 ligne (34.7 mm) column wheel monopusher chronograph movement produced by Landeron in the 1930s. It is similar to the two-pusher Cal. 3.