Essential Form The Oyster Perpetual 36 is a pure expression of Rolexs design philosophyclean, precise and enduring. With its roots in the original waterproof Oyster case, it continues to represent the brands commitment to clarity, performance and timeless appeal. Understated Strength This reference, produced in 2011, features a silver dial and domed bezel, secured with an Oyster bracelet and Oysterclasp. Its proportions and simplicity make it a versatile companion for everyday wear, offering a quiet strength that defines the Oyster Perpetual line.