Each winding crown is screwed down, making it waterproof and dustproof. Besides the Rolex coronet, there are also codes on the crown: a horizontal bar stands for stainless steel, two dots for gold and a case sealed with a twin lock. And three dots for a triple lock: these models are as waterproof as a submarine hatch.
The Oyster Perpetual Datejust is the epitome of the classic Rolex watch. When it was launched in 1945, it combined all the important innovations that existed at the time and was the first automatic chronometer wristwatch
with a date display at three o’clock. Its timeless design and robustness make it the most successful Rolex model to this day.
The “Cyclops”, the magnifying lens over the date, magnifies it two-and-a-half times. Bonded to the exceptionally scratch-resistant sapphire crystal of the watch, it is made of double-sided anti-reflective sapphire crystal for optimal readability. The fact that the number 28 is shown under the magnifying glass on many photos is purely aesthetic: no other number fills the window more beautifully.
THE HOUR HAND
The distinctive hour hand of the Submariner and other models is also part of the Rolex DNA. It came about for a purely practical reason: the hour and minute hands should be distinguishable at a glance (e.g. when diving). A circular area filled with luminous material proved brittle as it hardened: dividing it into three sections led to a reduction in the surface tension.
The Jubilee bracelet was created in 1945 to celebrate Rolex’s 40th anniversary and the launch of the Datejust. It comprises well over 100 individual parts that are assembled by hand.
Even if it is hard to believe because of its timelessly modern look – the Oyster strap was the first watch bracelet from Rolex.
The President strap is reserved for the day-date models and some versions of the Datejust in precious metal and is made exclusively in 18-carat gold or platinum 950.
The Oysterflex strap has longitudinal pads on the inside for maximum wearer comfort.