In function as well as in name, the Oyster Perpetual GMT‑Master II evokes long-distance travel across time zones.
The GMT-Master, a true “tool watch”, evolved continually to offer increasing technical performance. In 1982, Rolex introduced a new movement that allowed the hour hand to be set independently of the other hands. To clearly mark this evolution, the model fitted with the optimized movement was named the GMT-Master II.