It debuted, but it was hardly debated ✓ The left-handed white gold Rolex GMT-Master II "Sprite" with its green ceramic dial ✓ ...

We're speaking about the bi-color, blue-red bezel insert that instantly gives away a certain watch as being made by Rolex. This timepiece, the GMT-Master (or GMT-Master II), has proliferated ...

But luckily not entirely. We’ve still got the Rolex GMT-Master. The GMT-Master, which was released in 1955 and is celebrating its 70th birthday this year, was a totally new kind of travel watch.