Introduction and Launch: The Rolex calibre 620, introduced around 1932, was a groundbreaking movement that revolutionised watchmaking as Rolex’s first true automatic rotor winding mechanism. This innovation allowed the watch to self-wind through the natural motion of the wearer’s wrist, reducing the need for manual winding. Shortly after, Rolex coined the term “Perpetual” to describe this self-sustaining system—a name that remains synonymous with the brand’s automatic movements to this day.
