This is a highly collectable Wittnauer professional Chronograph from the 1960s, Ref. 242T and powered with a Valjoux 72 movement. S/S oversize 38mm screw back case. Awesome original all black dial with indexes dots on yellow patina and unmatched black hands lume. This model has become quite scarce and very difficult to find in such nice and untouched condition.
Price on request