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Lot Essay
US$6,000-8,000
With Rolex fitted presentation box.
The Turn-O-Graph was presented at the Basel Fair in 1954. 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".
Despite its brilliant concept, the model was at the time not as successful as expected by Rolex, but enjoys today great popularity amongst collectors.
With Rolex fitted presentation box.
The Turn-O-Graph was presented at the Basel Fair in 1954. 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".
Despite its brilliant concept, the model was at the time not as successful as expected by Rolex, but enjoys today great popularity amongst collectors.