Rolex Datejust 1601 "Sigma Dial", 1973 Gold Vintage Watch 16013 was perhaps the one

16013 was perhaps the one with the most iconic Rolex look of all

The perfect

The Enicar Sherpa Graph 300 “Jim Clark” with its 39 mm case dates from around 1966

but you'd have to lay out at least double the price to get an example even close to this condition

Rolex Datejust 1601 "Sigma Dial", 1973 Gold Vintage Watch 16013 was perhaps the oneA beautiful example of the Rolex Datejust 1601 featuring a rare "Sigma" dial. Presented in excellent overall condition, this vintage Datejust reference 1601 hails from circa 1973. This example features a rare and collectible "Sigma" dial as identified by the " T SWISS T " text at the base of the dial. The "" being the lower case Greek letter sigma. When gold prices quintupled between 1970 and 1974, the sigma marks were intended to show the use of gold