This 2006 Rolex Datejust 36 in stainless steel and yellow gold shows the model in its classic two-tone form. The gray Roman dial gives it a cooler, more architectural feel and tempers the familiar Datejust profile. Its automatic movement powers the date display with the straightforward utility collectors expect. At 36 mm by 11.5 mm, it keeps the balanced proportions that define the Datejust.