The main spring is inside a little barrel. The outside end of the spring is only “stuck” to the outside of this barrel with some “viscous oil” (so if you over wind it can slip and not break).
Sounds like this oil has “gone”. And allows the spring to unravel.
A service would fix this.
The main spring is inside a little barrel. The outside end of the spring is only “stuck” to the outside of this barrel with some “viscous oil” (so if you over wind it can slip and not break). Sounds like this oil has “gone”. And allows the spring to unravel.
A service would fix this.