Signed Rolex, Oyster Perpetual, Turn-O-Graph, Officially Certified Chronometer, Ref. 6202, case no. 953'665, manufactured in 1953

The present watch is a rare example of the celebrated "Turn-O-Graph" reference 6202 model, fitted with the less common white honeycomb dial. Marketed as a "tool" watch, the Turn-O-Graph is commonly accepted as one of the "godfathers" of all Rolex sports watches preceding most notably the Submariner and consequently the Sea Dweller and also the GMT-Master.

The Turn-O-Graph was presented at the Basel Fair in 1953, the year of production of the present watch. The model was always fitted with a rotating bezel with five minute divisions, referred to as a "time-recording-rim" by Rolex. Designed to be used as a simplified chronograph version for timing events for up to an hour, it was promoted as being able to calculate the "Timing of a transatlantic telephone call, the rate of a machine, a patient's pulse, the speed of a train or the development of a film".

The Turn-O-Graph was available with a black dial, the 'De Luxe Model', such as the present watch, featured a "magnificent white 'honey-comb' dial".

Despite its brilliant concept, the model was at the time not as successful as Rolex expected, mainly due to the simultaneous in-house competition from the Submariner and the GMT-Master.