The Rolex Ref. 1675 GMT Master was originally designed for Pan Am crews and frequent travellers. It features a rotating bezel of bright red and blue (red for day time and blue for night time), as well as an arrow-tipped hand to indicate the local time zone. Its production period lasted more than 20 years (from 1959 to 1980), which in a way proved its popularity across generations. People are obsessed with its innovative technical functions and impres- sive designs, and have a tireless interest in digging all major or minor changes of versions.

The current example is from early to middle 1960s, which we believe is the last generation with gold indexes on lacquer dial. It is in an excellent original condition, the dial is nearly flawless, not to mention the luminous indexes and hands show nice neon green under UV lighting.