In 1931, Rolex invented and patented a self-winding mechanism with a free rotor called a permanent rotor, based on a principle later adopted in the watchmaking industry. The self-winding mechanism consists of a half-moon-shaped rotary…
In 1931, Rolex invented and patented a self-winding mechanism with a free rotor called a permanent rotor, based on a principle later adopted in the watchmaking industry. The self-winding mechanism consists of a half-moon-shaped rotary…