====== Landeron 11 ====== The **Landeron 11** and similar **Landeron 13** was a [[chronograph]] movement produced in the 1940's by [[Landeron]]. It is a compact 5-pillar [[column wheel]] [[monopusher]] chronograph movement measuring 13 [[ligne]]. Cal. 13 had a stronger mainspring. Cal. 13 was also sold by [[Alpina]] as their Cal. 651 and Cal. 940. {{tag>Movements Landeron_calibres Chronograph_movements Manual_winding_movements Column_wheel_chronograph_movements Monopusher_chronograph_movements}}