

PROPERTY OF A FLORIDA COLLECTOR
Beginning in the late 1960s, Rolex offered special "exotic" dials on their Cosmograph Daytona models. Years later, watches with these dials became known as Paul Newman models, since the actor is presumed to have worn one in the 1969 auto racing film Winning.
The Paul Newman dial is characterized by square markers in the chronograph scale and subsidiary dials, in addition to the alternating coloration patterns. Although they were widely available at the time, these dials were produced in smaller numbers and are rarer to find.
The Calibre 727 is the evolution of Calibre 722-1. Rolex improved the Calibre's performance by changing the balance from 18'000 to 21'600 vibrations per hour, which noticeably increased the precision.
The Calibre 727 is illustrated in Carlo Pergola, Stefano Mazzariol & Giovanni Dosso, Rolex Daytona: A Legend Is Born, 2006, p. 122–125.