Berthoud Genève monopusher chronograph 

Case: 40 mm oversize 18 kt yellow gold, snap on back, olive single pusher and big crown

Dial: white enamel, black graphics with Arabic numerals and black feuille hands. Outer telemeter red scale and inside red scale

Movement: manual winding 

Year: 1930 circa

The watch is accompanied by our certificate of autenticity and legitimate provenance