1979 Rolex GMT-Master (Ref. 1675) Mk. V "Hot Chocolate"

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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 long-haul international flights.

GMT stands for Greenwich Mean Time - the time zone that 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 # RLXGMT791675-10
Brand Rolex
Style GMT-Master
Model 1675
Serial 58XXXXX
Size Men's
Material Stainless Steel
Dial Black (Matte) Mk. 5
Millimeters 40

Rolex 78360 Oyster Bracelet W/ 580 End Pieces



The excellent case has been previously lightly polished and retains very thick and even lugs. The original "fat font" insert has taken on a very uncommon and beautiful brown coloration. The Rolex 78360 Oyster bracelet with 580 end pieces remains in excellent condition, retaining 13 links and showing very little stretch from use.


The excellent Mk. 5 matte dial remains in excellent condition. The tritium lume plots have aged to a beautiful yellow coloration. The original hour, minute, and sweep-seconds hand have been professionally restored to have a yellow patina previous to our acquisition, the GMT hand retains its original tritium lume that matches the dial perfectly. The metallic date wheel is era correct with open 6's and 9's.


None. Watch is keeping time within spec, previous service history is unknown.