When the Rolex Oyster made its debut in 1926, it became the first wristwatch in history to boast a water-resistant case. The Rolex Oyster Perpetual was release only a few years later, in 1931, and featured Rolex’s groundbreaking perpetual automatic movement. Since then, the Oyster Perpetual has become one of the most beloved watches in the Rolex catalogue. Today, the Rolex Oyster Perpetual is known for its simple, refined elegance. With prices for new Oyster Perpetual wristwatches starting at $5,400 for the 36mm model, this is one of the most affordable Rolex watches on the market.