Fundamental component of every Oyster and Rolex signature piece par excellence, the Perpetual rotor. By capturing the energy generated by even the slightest move of the wrist, this self-winding system invented by Rolex in 1931 breathes life into the movement so that the heartbeat of the watch never stops.
The principle of the Perpetual rotor has remained unchanged in the course of various evolutions and successive improvements: with the slightest wrist movement, the half-moon-shaped component – the oscillating weight – pivots freely and silently on its axle driven by the Earth's gravity. The Perpetual rotor provides three major advantages for wearers: it liberates them from worrying about manually winding their watch, the self-winding system continuously winds the mainspring, thus ensuring greater regularity and better precision and finally, the waterproofness of the case is significantly reinforced since daily unscrewing and re-screwing of the winding crown are eliminated.