Rolex Datejust 31mm Chocolate 10 Diamonds Steel Everose Jubilee 278271Overview Rolesor the combination of Oystersteel and gold in a single case has been part of the Datejust since 1945. The 278271 is the current Everose Rolesor expression in the 31mm format: 18k Everose gold at the fluted bezel and Jubilee center links, Oystersteel at the case body and outer bracelet links. The chocolate dial with diamond indices is the configuration that makes the most of this material combination the warm brown of the dial reads as