The 118209 model of the Day-Date 36 is the monochromatic solution for the watch enthusiast who wants to keep it simple and functional. The 118209 has a white gold case that is 36mm in diameter with a scratch-resistant sapphire crystal and a screw-down crown. It comes with a domed, fixed white gold bezel and a solid case back. The dial is silver-toned colored with coordinating silver-tone Roman numeral hour markers, a date window, and a day window. The 118209 is powered by the self-winding 3155 calibers a certified Swiss chronometer that has day-date functionality and a power reserve of 48 hours. The case is fitted on a white gold president bracelet with a fold-over clasp. It has a water resistance of 100 meters (330 feet).