While the Oyster Perpetual is one of Rolex' entry level watches, it still exudes the same quality and timeless design as its more expensive siblings. In its present configuration, the Oyster Perpetual features a case of 36mm. It is powered by caliber 3130.
This model is equipped with calibre 3130, a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all Rolex Perpetual movements, the 3130 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests - though versions without also exist. It is fitted with a Parachrom hairspring, offering greater resistance to shocks and to temperature variations. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.