The Rolex Oyster Perpetual combines two of Rolex's biggest achievements, a dust-proof oyster case and the self-winding perpetual movement. Since the introduction of the Rolex Oyster Perpetual in 1931, we have seen the model in a range of materials and case sizes with a variety of dials and configurations. The Oyster Perpetual range is currently exclusive to Oyster steel and only configurable with an Oyster bracelet and smooth bezel.