At the very beginning, Rolex lacks one major feature in its watches: date aperture lens. In 1954, after 9 years production, Rolex promoted its watches with a date aperture. At beginning, it only had golden edition, and then Rolex began produce rose gold edition, steel edition and dual color edition. There is some slight different between the bezel. Back then, the bezel is the coin patterns. The new Rolex Datejust, promoted in 1954, was a big hit in the market. It was a automatic winding watch, highly precise and has date display. The Oyster case perfect it. The high performance on resisting water can be achieved through the screw-in case back. The protruding case back is limited to its automatic rotating rotor. What's more, Rolex also launched the Jubilee bracelet-a new yellow golden bracelet that is now still popular.

In 1945, Rolex used Cal.710 movement, and later it choose Cal.730 to replace it, and in this movement it still has 17 diamonds on it, and it is much more stronger than the former movements. But, even they are tougher, it is hard to find components that could replace them, so even Rolex did not want to repair those antic watches. But those antic watches always has a high bid in the auctions. 

Rolex Datejust has a high recognition, just like other Rolex types. The case is more and more cool and of power, but the watch itself, including layout in the dial, hands, and parameter, remain the same. in addition, only few watches of Datejust has the moon phase indicator. In 2000, Rolex launched a polishing bezel. The case keeps the same size until it launches Datejust II. Thanks to the great demand on big-size watches, Rolex Datejust increased its size from 36mm to 41mm. but, Datejust is still so graceful. Movement changes a lot but not thoroughly.  aswisswatches