Description: Rolex Datejust 41 ref 126334 Pre-owned Rolex Datejust 41 ref 126334 (2011 – 2017) is the larger, 41mm version of the much-beloved DJ dress watch. While the series has been in continuous production since 1945, it wasn’t until the late 2000s that it finally received a larger 41mm case, up 5mm from the DJ36. The Datejust 41 came about in 2016, replacing the Datejust II and bringing with it more refined proportions and the more efficient caliber 3235.