Back in the 1960's I wanted a new Exakta VX IIb, but could not scrape together enough money to puchase one. Finally I bought a used 1937 Kine Exakta model 1 in 1969 - a real classic.
Recently I bought two VERY USED badly corroded UGLY 1950's VX parts cameras for the lenses and was surprised to find that the shutters looked and sounded great and worked at speeds 1/25 to 1/1000, B & T. I do not dare try the slow speeds or delayed timer for fear of freezing up the delicate clockwork mechanism.
I am shocked at the amazing condition of the shutters in cameras that have obviously been abused and neglected for decades. These things were really precision instruments in their day.