3136

Calibre 3136 is a self-winding mechanical movement entirely designed and produced by Rolex. Like all Rolex Perpetual movements, the 3136 is a certified Swiss chronometer, a designation for high-precision watches that have passed the Swiss Official Chronometer Testing Institute (COSC) exams. It incorporates a Parachrom hairspring and high-performance Paraflex shock absorbers developed by Rolex to provide enhanced resistance to impacts and extreme conditions, while its Oyster design ensures consistent reliability. (Chronometer)