1978 Rolex GMT-Master (Ref. 1675) Mk. IV

This specific 1978 Rolex GMT  possesses all the things we love about the Rolex GMT 1675. From the MK IV dial to the excellent black insert, it looks great on a leather strap or more casually on a NATO. This Ref. 1675 GMT would make a great daily driver for the man always on the go. 

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The Rolex GMT is the jet-setting icon of the Rolex sports watch family. The history of this sophisticated, versatile style dates back to 1954 when Rolex received a request from Pan Am to create a technical pilots watch that could indicate two time zones simultaneously.   As advances in aviation made transcontinental flights commercially available Pan Am needed a watch that could be issued to their crews on the long-haul international flights.

GMT stands for Greenwich Mean Time - the time zone which regulates world clocks and is required for all aviation planning and schedules. The Rolex GMT Master has a fourth 24-hour hand that directly displays the same time zone as the standard 12-hour hand but on a 24-hour scale. The addition of this GMT hand enabled crews to set the watch to GMT or another time zone, and, using the rotating 24-hour scale bezel, correct the offset to display a second time zone on the 24-hour scale.

This feature is just as useful today, allowing the modern traveler to easily keep track of his home time zone, no matter how far he may have journeyed.

Stock #
Brand Rolex
Style GMT-Master
Model 1675
Serial 58XXXXX
Size Men's
Material Stainless Steel
Dial Black (Matte) MK 4
Millimeters 40
Strap NATO Strap (Coyote Brown)



The thick case shows honest wear and signs of being previously lightly polished with the factory chamfer still slightly present. The original black "fat font" bezel insert remains dark black in coloration showing very little wear from use. Watch will come supplied on a strap of your choosing.

Dial & Hands

The matte black Mk. 4 dial remains in excellent vintage condition. The tritium lume has taken on a charming creamy patina. When inspected under U.V. light the lume plots show no lume degradation. The original hands have been professionally matched to the dial with tritium. The silver date wheel is era correct with open 6's and 9's.


None. The watch was recently serviced and is running at COSC spec backed by a 1-year warranty.