You mentioned that your watch has the rare Valjoux cal. 720 with 'retour en vol/ flyback' chronograph function....how can this be identified and judging from my photos...does my watch have this too?
Thanks Z for checking out my better photos....my watch isn't running at this time but I showed it to a watch repairer and he said it looks really nice inside and probably just needs a basic cleaning to get it operational.