The 40th Anniversary of Rolex was marked by the release of the Oyster Perpetual Datejust wristwatch. The Datejust was released in 1945 and today it is known as an iconic yet traditional watch with modern style. This is a rather amazing description considering it has only been slightly revised over the years.
The original Datejust had a bezel size of 36mm and was the first self-winding, waterproof chronometer wristwatch with the magnified date in a small Cyclops window at three o’clock on the dial. The date would automatically change slowly in the earlier production years but by 1955, the date-change mechanism operated instantaneously at midnight.
The Datejust timepiece features the Oyster case which Rolex produced in 1926. The Oyster was the world’s first waterproof case which protected the high-precision perpetual movement from water damage, dust or pressure. The Jubilee Bracelet was made especially for the 1945 Datejust timepiece release. It features a comfortable five-piece link metal bracelet with a concealed crownclasp, which protects from accidental opening.
The Rolex Lady-Datejust, the first female-specific version of the Rolex date chronometer, was introduced in the late 1950s. It was also an officially certified chronometer, containing a perpetual self-winding movement and was waterproof to a depth of 330 feet.
Although relatively few changes were made to the Rolex Datejust wristwatch throughout the years, the 1970s brought about a few design changes. The plastic acrylic crystal was replaced by a scratch resistant sapphire crystal. A new case and dial were added which resulted in the