ROLEX, REF. 16753 GMT MASTER, “ROOTBEER”, AN ATTRACTIVE 18K YELLOW GOLD AND STEEL DUAL TIME WRISTWATCH WITH DATECIRCA: 1983CASE MATERIAL: Steel, 18k Yellow Gold CASE DIAMETER: 40mm SERIAL NO’:7600389BRACELET MATERIAL: 18k Yellow Gold, Steel BRACELET SIZE: 170 mm Approximate Overall Length DIAL: Rootbeer     MOVEMENT: Automatic FUNCTIONS: GMT, Date BOX: NoPAPERS: NoIn 1962, Rolex launched its first GMT model in two tone material. Prior to this release, GMT Master watches were only available in all-stainless steel or gold. This first example in the long history of “Root Beer” models has the reference 1675/3 and features a brown or black dial framed by a rotating bezel that is half gold and half brown. It was nicknamed “Root Beer” by collectors and connoisseurs due to the fact that the color of the bezel looked like Root Beer. The relatively short production time made this rare reference an important part of any serious collection.