1977 Rolex GMT-Master (Ref. 1675) Mk. IV W/ Box

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.

Rolex GMT Pan Am 1675

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 edition 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.

This specific piece would make a great daily driver for the man always on the go.  The 1675 reference is becoming increasingly hard to find and would make a great addition to an existing collection.   

Stock #
Brand Rolex
Style GMT Master
Model 1675
Serial 51XXXXX
Size Men's
Material Stainless Steel
Dial Matte Black (Mk.4)
Millimeters 40
Strap Rolex Oyster 78360 W/ 580 End Pieces



The case appears to have been very lightly polished yet retains thick lugs with slight chamfers still present. The "Pepsi" insert is a later Rolex replacement and remains in perfect untouched condition. The Rolex 78360 Oyster bracelet with 580 end pieces in very good condition with 12 links.

Dial & Hands

The wonderful Mk. IV dial remains in excellent condition. The lume plots have taken on a light ivory patina and remain fullying intact and are inspected under U.V. light. The original tritium hands match the dial and when also inspected under U.V. light they show no degradation. The silver date wheel is era correct with open 6's and 9's


Original Rolex inner and outer boxes are included with the waThe watchWatch was recently serviced and is running at COSC spec backed by a 1-year warranty.