Rolex GMT Master
Rolex GMT Master was originally designed in 1956 to aid pilots who travel through multiple time zones.
A new model of the GMT Master came out in 1983 that features a sapphire crystal which cannot easily be scratched. This model was named the GMT Master II.
A new model of the GMT Master came out in 1983 that features a sapphire crystal which cannot easily be scratched. This model was named the GMT Master II.
