An automatic stainless steel and eighteen carat gold Rolex Oyster Perpetual Datejust reference 16013 model. This example has a gorgeous radiant blue dial with rare gold markers that feature a recessed center with two raised edges painted in white that pop from the blue dial. All original lume plots are intact as well as in the hands, and are not re-finished. The watch is powered by a Rolex, Swiss made, twenty-seven jewel automatic calibre 3035 movement that powered the majority of all Rolex models since its launch, from the Datejust to the Submariner. These later models can be identified as they do not have the earlier, characteristic, 'pie pan' style dial. This model also comes with the more ergonomic 'Quick Set' date function, and the newly designed smaller profile case, all of which were introduced in the 1970's. However, this case still has the spring bar holes exposed from the side, which was eventually phased out around the early 2000's. The watch is fitted to its original Rolex Jubilee stainless steel and eighteen carat gold bracelet with four removable links in place, which, if needed, can be removed to make the bracelet smaller. The watch was made circa 1980 with serial number 641XXXX. The watch is in original condition, lightly polished, and comes with a Foundwell one year warranty against mechanical failure.