The Rolex Datejust was introduced in 1945 and appeared very similar to the Rolex Bubbleback. The key differences in the Datejust was the introduction of the date function at the three o’clock position and the Rolex Datejust was made slightly thicker than the Bubbleback to accommodate the date wheel, which contained alternating red and black date markers to distinguish between odd and even days. Also when the Datejust was introduced, it was fitted with a coin-edged bezel and a pie-pan dial.

In the 1950s, the cyclops feature, a magnified window to allow easy visibility of the date, was first released on the Datejust. Rolex also introduced the Thunderbird version of the Datejust, where the only real difference between the two is the bezel since the Thunderbird model uses the Rolex Turn-O-Graph bezel.

 In the 1970s, there were four key features that were released to significantly change the shape of the Datejust from its original design. A new movement was built to accommodate the quick-set feature and because of the new movement, the Datejust had a smaller profile, a new case, and new dial. A sapphire crystal soon replaced the plastic crystal, helping to secure the Datejust as the classic face of the franchise it is today.

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Men's Rolex Datejust Two-Tone in Stainless Steel and Yellow Gold

Men's Rolex Datejust Two-Tone with Champagne Dial. Shown with Open Clasp

Men's Rolex Datejust Two-Tone Stainless Steel 18k Yellow Gold 

Displaying the Many Options Available, such as the Slate Diamond Dial

MEN'S TWO-TONE                                                        MEN'S STEEL                                                               LADIES TWO-TONE