Rolex Datejust

In order to make the Oyster Perpetual more suitable for daily use, Hans Wilsdorf integrated the date display into the dial in 1945: The Rolex Reference 4467 had a window at three o’clock with the date automatically changing to the next day at midnight: That was the Birth of the Datejust.

The first model from 1945 was an immediate success, because its automatic winding, the high accuracy and the date completed this Oyster Perpetual to make it an excellent everyday watch. The high waterproofness, which was achieved with the help of the screw crown and base, provided for a lasting protection of the mechanism. The bulbous back side, also called “Bubble Back” was needed to accommodate the space-consuming Rolex automatic Caliber 730 …