Introduction and Launch: The Rolex calibre 630, introduced around 1937, succeeded the calibre 620, refining the world’s first self-winding movement with rotor technology. As part of Rolex’s early lineup, it played a crucial role in the evolution of automatic watches, further enhancing the brand’s reputation for precision and reliability. This movement marked an important step in the development of self-winding mechanisms, solidifying Rolex’s legacy of innovation in watchmaking.
