Rolex GMT Master II Steel & YG 126713GRNROverview The 126713GRNR carries the same grey black bezel configuration as its all steel sibling, but the Rolesor construction changes the visual register entirely. Where the steel model is an exercise in monochrome utility, the 18k yellow gold bezel, crown, and centre Jubilee links shift the watch into a more considered, professional context. The introduction of the grey bezel segment as opposed to a stark green or blue is a strategic choice. Yellow