Rolex Explorer 1 36mm 124270 2026Overview The Rolex Explorer 1 reference 124270 returned to 36mm in 2021, and it was the right call. Rolex had stretched the Explorer to 39mm in 2010 functional, but it lost the clean, proportionate presence that defined the original. The 124270 restores that. The case is Oystersteel, sitting lower on the wrist than the previous generation. The dial is matte black with applied 3, 6, and 9 numerals a configuration dating to the ref. 1016 and unchanged