The Rolex Oyster Perpetual Day-Date is an iconic watch that hardly needs an introduction. Only ever available in precious metals, it was for many years the undisputed king of the Rolex collection and the singular most recognizable 'expensive' watch to the general public. The present example features a 36mm made of Rolex’s signature Everose Gold. Due to its sunburst brown dial paired with the rose gold case, the watch received its nickname of “Chocolate.” The watch is driven by the brand’s automatic Caliber 3155 featuring a day and date calendar disc mechanism. Like all Rolex Perpetual movements, the 3155 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests.