I am fascinated by mechanical watches-I have one, which has a glass back. I can see the balance wheel oscillation (5 times per second)-and that little spring expands and contracts. How long do these springs last? Are they prone to fail suddenly?
I am fascinated by mechanical watches-I have one, which has a glass back. I can see the balance wheel oscillation (5 times per second)-and that little spring expands and contracts. How long do these springs last? Are they prone to fail suddenly?