Rolex Datejust 6105 , The Early Pioneer (1951–1953) The Rolex Datejust 6105 represents one of the earliest chapters in the evolution of the Datejust line. Produced in the early 1950s, this reference captures the moment when Rolex began refining the modern Datejust identity. With its clean lines, early dial typography and robust automatic movement, the 6105 stands as a true transitional model between the first post-war designs and the more sculpted references that followed. Although simpler in appearance than its successor, the 6105 carries the charm of Rolex’s formative years: a slightly rounded case profile, classic smooth or fluted bezel options, and the unmistakable presence of a watch built for precision and everyday reliability. Early examples often feature a high-domed caseback, echoing the bubble-back heritage that influenced Rolex design throughout this era. Today, the 6105 is cherished by collectors for its understated character and historical importance. It is a rare opportunity to wear the beginnings of one of Rolex’s most iconic lines, a quiet pioneer that helped shape the future of the Datejust.