Model case
- Crystal
-
Scratch-resistant sapphire, Cyclops lens (2.5x) over the date
- Water-resistance
-
Waterproof to 100 metres / 330 feet
- Model case
-
Oyster, 40 mm, steel
- Bezel
-
Bidirectional rotatable 24-hour graduated Cerachrom insert in ceramic
- Diameter
-
40 mm
- Winding crown
-
Screw-down, Triplock triple waterproofness system
- Oyster architecture
-
Monobloc middle case, screw-down case back and winding crown
- Material
-
904L steel
Movement
- Calibre
-
3186, Manufacture Rolex
- Model case
-
Perpetual, mechanical, self-winding, GMT function
- Oscillator
-
Paramagnetic blue Parachrom hairspring
- Winding
-
Bidirectional self-winding via Perpetual rotor
- Precision
-
Officially certified Swiss chronometer (COSC)
- Functions
-
Centre hour, minute and seconds hands. 24-hour display. Second time zone with independent rapid-setting of the hour hand. Instantaneous date. Stop-seconds for precise time setting
Bracelet
- Clasp
-
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
- Bracelet material
-
904L steel
- Bracelet
-
Oyster, flat three-piece links
Dial
- Dial
-
Black
The GMT-Master, introduced in 1955, was developed to meet the needs of international pilots. The GMT-Master II, unveiled in 2005, has proved to be even more invaluable to those whose professions involve long-distance travel. Featuring a rotatable 24-hour graduated bezel and a separate 24-hour hand, it allows those who travel the world to read three different time zones. Two simultaneously.
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