In production from 1965 to 1969, the Reference 6240 was the first Rolex Daytona to incorporate screw-down pushers and thus became the first waterproof Cosmograph model to be produced by the brand. Manufactured solely in stainless steel, the chronograph also features an acrylic tachometer bezel calibrated to 200. There were a few different dial variations found on Reference 6240, and Sotheby’s specialist @m_a_n_e_g_a shows us how to recognize a Daytona ‘Paul Newman’. A highlight of the ‘Important Watches: Part I’ auction on 14 May. Visit the link in bio to discover the catalogue. #SothebysWatches #SothebysLuxuryWeek #Rolex #RolexDaytona #RolexPaulNewman