The Rolex GMT-Master II Ref 16710 proves to be a fascinating timepiece. Introduced to the market in 1989, it continued to be in production for nearly two decades. Evidently, it enjoyed strong demand and sales during its production run, which translates to a significant presence in the collector's market today. In other words, it does not fall into the category of "rare" timepieces. Furthermore, this particular reference doesn't offer any distinctive features. It features a 40mm stainless steel case, stainless steel bezel, a black dial, and a water resistance of up to 100 meters.