Gents wristwatch calibre Valjoux 72C with chronograph and calendar, Switzerland...

Gents wristwatch calibre Valjoux 72C with chronograph and calendar, Switzerland around 1950, manual winding, dial and case with aftermarket signature, 3-piece construction steel case, snap on case back and bezel, correction in case inserted, restored dial, calibre Valjoux 72C with screw-balance, Breguet balance-spring, movement-bridge abraded, diameter approx. 35 mm, hour-counter and calendar-circuit defect / has to be repaired, condition 3, property of a collector