“A COMMON ARCHITECTURE
Precision, robustness, reliability

The Perpetual movements that equip the Oyster models play an integral part in the reputation for excellence of Rolex watches. These mechanical self-winding movements, all rigorously certified as chronometers by the Swiss Official Chronometer Testing Institute (COSC), are entirely designed and manufactured by Rolex based on a common architecture and characteristics that ensure high performance and adherence to the uncompromising requirements of precision, reliability, shock-resistance, efficient self-winding and ease of maintenance.”

-Rolex