The Development of Japanese Quartz Watches over the years

Dear Watch Collectors,

Seeing is believing, here you are, I have opened the cases and you can see what is inside of quartz movements from 1970s up to 1990s.

Early 1970s model - you can see the balance staff is still around, only the power by the main spring has changed into battery. That means the power to push the hour hands, the minute hands and second hands are done by the battery.






Late 1970s model, you can see the balance staff had been changed into a stepping motor. If you see the quartz watches, you an see the jerking movements of the second hands.

1980s model - circuit and transistor included and size been reduced to give a slimmer quartz watch in size.



I hope these pictures give the beginner collectors the inside and the development of quartz watches.