Rolex Perpetual GMT-Master II 126710blnr Series

Designed to show the time in two different time zones simultaneously. the GMT-Master. launched in 1955. was originally developed as a navigation instrument for professionals criss-crossing the globe.

In addition to conventional hour. minute and seconds hands. the GMT-Master II features an arrow-tipped hand. which circles the dial once every 24 hours. as well as a bidirectional rotatable 24-hour graduated bezel.

Like all Professional watches. the GMT-Master II offers exceptional legibility in all circumstances. and especially in the dark. thanks to its Chromalight display. The broad hands and hour markers in simple shapes – triangles. circles. rectangles – are filled with a luminescent material emitting a long-lasting glow.

The emblematic two-colour bezel makes the GMT-Master II instantly recognizable. 

This bidirectional rotatable bezel is fitted with a 24-hour graduated Cerachrom insert manufactured from extremely hard ceramic. created thanks to a pioneering process developed by .