In 1984, is the GMT Master Ref.16758 of the production. Index of uprights known as nipple (barnacles) is attractive features. Brown dial become no color to the current GMT-Master and is very focused. This solid is an excellent individual matches in the dial, case and bracelet. Dial is a process of aging tarnished from Brown to orange. It is dark brown discoloration spots there are places allows angle Orange to look around. The future is fun. In yellow gold Brown model in recent popular growing market gone out to have. We recommend.