A travel-watch mainstay, the Rolex GMT-Master II reference 16710 distills the model to its most restrained form, with a black bezel and black dial in a 40mm stainless steel case. The monochrome execution keeps the focus on clarity and function rather than contrast. Its automatic movement pairs a date display with GMT capability for tracking a second time zone. At 12mm thick on a stainless steel bracelet, it wears with the balanced, easy proportions collectors value.