Rolex 1675 - GMT, patina dial, stainless steel case and Nato Strap.
It was created for aviation in 1954 with the reference # 6542, but the most commonly known reference # is 1675. It was manufactured between the 70s and 80s, producing modification only in the movement.
The bezel is rotating and has a 24 hour scale with triangular luminescent marker at 12 o'clock and luminescent stick markers, but with no numbers. The bezel has 2 colors: one for AM and the other for PM.