The Rolex Datejust is a classic and elegant wristwatch that was introduced in 1945. It is known for its timeless design and is one of the most iconic models in the Rolex lineup. The watch features a date display at the 3 o'clock position and a cyclops lens, which magnifies the date for easy reading. The Datejust is available in a variety of materials including stainless steel, gold, and precious gems. It is available in a range of sizes and styles, including the traditional 36mm size and the larger 41mm size, and with various dial and bezel options. The Rolex Datejust is a versatile watch that can be dressed up or down, making it a popular choice for both casual and formal occasions.