Black Mother Of Pearl dial enhanced by gold-tone hands. 18kt yellow gold case with a 18kt yellow gold rolex president band. Automatic movement. 100 meters / 330 feet water resistance. Fixed Fluted bezel. Scratch Resistant Sapphire crystal. Solid caseback. Crownclasp clasp. Screw Down crown. Case size 31 mm. Rolex 178278BKMDP Datejust Watch.