Rolex Datejust 179138

The Reference 179138 is a gem-set model from the six-digit Lady-Datejust series (c. 2005-2015), specified for a 26mm case in solid 18k yellow gold. The 3 in the reference number indicates its primary technical feature: a factory bezel set with 46 brilliant-cut diamonds. This reference is the direct successor to the five-digit 79138, featuring the updated case with broader, more highly polished lugs and solid-link bracelet construction. The watch is powered by the Caliber 2235, a 31-jewel, COSC-certified automatic movement. Its historical significance is as a principal jewelry watch in Rolex’s core collection during its production run. It was typically specified with the solid 18k gold President bracelet and offered with a range of premium dials, including mother-of-pearl and pavé options, to complement the diamond bezel.