Rolex Datejust Turn-o-Graph 6309 Silver OCC Dial cartier it was purpose-built for professional

it was purpose-built for professional explorers—specifically spelunkers—featuring a fixed 24-hour bezel and a striking

The watch comes on a great condition Oyster bracelet reference 78690

such as Panerai (then produced by Rolex)

- Comes with original Rolex inner and outer boxes

Silver dial with black Roman numerals PARIS signed

Rolex Datejust Turn-o-Graph 6309 Silver OCC Dial cartier it was purpose-built for professionalThe Rolex Turn O Graph, launched in 1953, is historically significant as the brands first serially produced watch to feature a rotating timing bezel. It predates more famous tool watches such as the Rolex Submariner and the Rolex GMT Master, effectively serving as the blueprint for Rolexs modern sports watch lineage. In 1954, Rolex transitioned the model into the Rolex Datejust family, adding the signature date window and Cyclops lens, blending tool