First released in 1953, the Turn-O-Graph can be considered the precursor of Rolex’s tool watches (such as the Submariner, GMT, Milgauss etc.). At the time, the model was truly different from anything that was offered on the market.
The newly introduced rotating bezel, calibrated to 60 minutes, allowed for accurate timekeeping. While reference 6202 was not the first Rolex wristwatch to carry a rotating bezel (the honor goes to the elusive Zerograph), it was the very first serially produced reference to feature one. The rotating bezel itself is a very important advancement and it has the innate feature of uniting a true practical purpose with strong and unmistakable aesthetics. As a result, its impact on the industry can on some levels be defined, without being hyperbolic, as paradigm-shifting. Soon after its introduction, however, the GMT-Master and Submariner - more specialized timepieces - overshadowed the Turn-O-Graph which was swiftly put out of production. Consequently, very few examples were made.

Ref Variations:  6202-IV53,