The Ultimate Guide To The Rolex GMT-Master 1675

The Ultimate Guide To The Rolex GMT-Master 1675

First created for carrier pilots during the 1950s, the Rolex GMT-Master is one of the world’s most notable watches. Throughout the span of its set of experiences, Rolex has consistently improved the look and highlights of the watch, bringing about some profoundly effective references, for example, the GMT-Master ref. 1675. Created from 1959 until 1980, the GMT-Master 1675 profited by a few improvements along the way.

Thanks to its long assembling period and bountiful varieties, the GMT-Master ref. 1675 is a well known vintage Rolex model to gather. There are a lot of subtleties to consider with this specific reference and we’ve spread out all you require to know here in our definitive manual for the Rolex GMT-Master 1675.

Rolex GMT-Master Ref. 1675

Rolex 1675 Key Features:

Release Year: 1959

Case Diameter: 40mm

Materials: Stainless steel; Yellow gold; Rolesor (two-tone steel and gold

Functionality: Time + running seconds, Second timezone, Date

Bezel: Bidirectional, Aluminum embed with 24-hour scale

Bezel Colors: Blue and Red (“Pepsi”); Brown and Yellow (“Root Beer”); Blue (“Blueberry”); Black

Dial: Black; Brown, Luminous hour markers with Mercedes-style hands

Bracelet: Oyster; Jubilee

Water Resistance: 50 meters/165 feet

Movement: Cal. 1535; Cal. 1565, Cal. 1575 (programmed, non-quickset)

Click here for our definitive purchasing guide on the Rolex GMT-Master.

Brief History of the Rolex GMT-Master 1675

The Rolex GMT-Master was first presented in 1955, assembled explicitly for Pan Am pilots. It was a double time watch that permitted pilots to all the while read reference time (a worldwide time standard known as Greenwich Meridian Time a.k.a. GMT in those days) and nearby time. Reference time is shown through a bolt tipped 24-hour hand highlighting a 24-hour checked turning bezel while neighborhood time is shown by the conventional 12-hour hand.

The reference 1675 was the second-age GMT-Master model, which originally showed up in 1959. It supplanted the first GMT-Master ref. 6542 and achieved some huge changes to Rolex’s lead pilot’s watch. For example, the case size of the GMT-Master 1675 developed by 2mm, crown monitors were presented, and the past Bakelite bezel embed was supplanted by aluminum. A few other changes, which incorporate crown watch shape changes, dial upgrades, type enhancements, and new bezel colorways all happened all through various purposes of the Rolex GMT-Master 1675’s two-decade history.

Initially accessible in treated steel (and later joined by gold and two-tone variations) ref. 1675’s case estimated 40mm in width, highlighted pointed crown watches, and was initially fitted with a part ring dial. From around 1959 to 1965, the case encompassed Rolex’s Caliber 1565 development, which was then supplanted by the Caliber 1575, with hacking later acquainted with the development in 1971. The case, as was common with Rolex watches of that period, was water-safe up to 50 meters (165 feet) and finished off with an acrylic gem over the dial. Clients could decide to match a GMT-Master ref. 1675 with either a five-interface Jubilee ref. 62510 wristband or a three-connect Oyster ref. 78360 arm band. The GMT Master Reference 1675 is an exceptionally sought after vintage Rolex watch thanks in huge part to the different shades of the particular bezel that Rolex extended over the years.

From 1959 to roughly 1966/1967, the GMT-Master ref. 1675 included polished plated dials yet Rolex changed them out for matte dials with white printing – a style that stayed until the finish of creation in 1980. Most Rolex 1675 dials utilized tritium for iridescence and incorporated the then-new “Standout Chronometer Officially Certified” mark on the dial – in any case, there were a few varieties in the soonest models, which we’ll examine in detail below.

GMT-Master 1675 Timeline & Milestones

1959: Rolex presents GMT-Master ref. 1675 to supplant ref. 6542

1960: Rolex discharges yellow gold GMT-Master 1675/8

1963: Rolex eliminates section ring from the dial

1964: Tritium replaces radium as the brilliant material

1964: Rounded crown watches supplant pointed crown guards

1965: Caliber 1575 replaces Caliber 1565

1966: Matte dials supplant plated sparkle dials

1966: Rolex updates yellow gold case to now include crown guards

1970: All-dark bezel introduced

1971: Hacking acquainted with Caliber 1575

1980: Rolex ceases GMT-Master 1675

GMT-Master 1675 Material Options and Case Design

When Rolex presented the 40mm GMT-Master 1675 out of 1959, it was first just accessible in hardened steel. A yellow gold form joined the assortment not long after, authoritatively known as the GMT-Master 1675/8, and frequently nicknamed the “Concorde.” Finally, around 1970, Rolex uncovered a two-tone yellow gold and tempered steel variation, known as the GMT-Master 1675/3. This was the absolute initial two-tone GMT-Master observe at any point made, and the combination of gold and steel on a watch is formally called “Rolesor” by the brand on both the Rolex site and altogether official materials.

Rolex Ref. 1675 Material options

–Stainless Steel GMT-Master ref. 1675 (1959 – 1980)

–Yellow Gold GMT-Master ref. 1675/8 (1960 – 1980)

–Rolesor GMT-Master ref. 1675/3 (1970 – 1980)

Unlike the past GMT-Master ref. 6542, the instances of the GMT-Master 1675 had crown monitors ensuring the winding crown, and the state of the crown watches developed throughout the long term. The most punctual shape was significantly pointed and the gathering community alludes to these as Pointed Crown Guards (PCG). Rolex then observably smoothed out the sharpness of the crown watches, likely beginning around 1963 – these are known as Broad Pointed Crown Guards. At long last, Rolex chose Rounded Crown Guard around the next year, which is to some degree like the style we find on current GMT-Master watches.

Rolex Ref. 1675 Crown Guard Shapes

–Pointed Crown Guards (roughly 1959 – 1963)

–Broad Pointed Crown Guards (roughly 1963 – 1964)

–Rounded Crown Guards (1964 – 1980)

Interestingly, the main cluster of yellow gold GMT-Master ref. 1675/8 didn’t have crown monitors by any stretch of the imagination. In any case, by the mid-1960s, Rolex upgraded the case to incorporate crown guards.

Rolex Ref. 1675/8 Crown Guards

–No Crown Guards (roughly 1960 – 1966)

–With Crown Guards (roughly 1966 – 1980)

By the time the two-tone GMT-Master ref. 1675/3 went onto the scene in 1970, it got adjusted crown watches much the same as its treated steel and gold partners of the era.

Rolex GMT-Master 1675 Bezels

The natural plan of a blue and red bezel with white numerals that made its introduction on the debut GMT-Master 6542 model proceeded with the ref. 1675. Notwithstanding being esthetically striking, the decision of a two-tone bezel served to assist the wearer with recognizing day and night hours when perusing reference time – red for day and blue for night.

The blue and red shading combination is famous to the GMT-Master assortment and is oftentimes called the “Pepsi” bezel among Rolex aficionados. Nonetheless, rather than being designed from weak Bakelite (like on the past ref. 6542), Rolex picked to outfit the tempered steel GMT-Master 1675 with a blue and red aluminum bezel embed instead.

By about the mid-1960s, Rolex additionally offered the choice of an all-dark bezel for the GMT-Master 1675. Furthermore, there’s likewise the exceptionally contested all-blue bezel, known as the “Blueberry,” which some say was an extraordinary request made during the 1970s for the United Arab Emirates military. In any case, as is standard with the brand, Rolex has never affirmed nor denied truly making these blue GMT watch bezels, and they were never authoritatively accessible as a standard alternative in Rolex’s catalog.

Bezel Colors of the Steel GMT-Master 1675

–Blue and Red “Pepsi”


–Blue “Blueberry”

Rolex first prepared the gold GMT-Master ref. 1675/8 with a monochromatic burgundy-earthy colored bezel. By 1970, Rolex added the decision of an all-dark bezel, which was combined with a dark dial.

Bezel Colors of the Gold GMT-Master 1675/8



The arrival of the two-tone hardened steel and yellow gold GMT-Master ref. 1675/3 additionally appeared another bezel colorway, which combined earthy colored and yellow – presently known as the “Root Beer” bezel. Like the yellow gold form, other bezel shading decisions for the GMT-Master ref. 1675/3 included either burgundy-earthy colored and black.

Bezel Colors of the Two-Tone GMT-Master 1675/3

–Yellow and Brown “Root Beer”



It’s imperative to take note of that large numbers of the first bezels of the GMT-Master 1675 have blurred after some time. For example, a few instances of the Pepsi bezel have blurred into light blue and orange or light blue and fuchsia. The last bezel is at times nicknamed the “Pink Panther.”

Rolex GMT-Master 1675 Dials

The dial of the Rolex 1675 GMT-Master went through a large number of adjustments all through the reference’s creation history. The soonest instances of the GMT-Master ref. 1675 actually utilized radium for iridescence until around 1963, when Rolex progressed to tritium for lume for security reasons.

Radium: 1959 – 1963

Tritium: 1963 – 1980

Furthermore, early instances of the GMT-Master 1675 highlighted overlaid gleam dials. Described by a dark reflexive foundation and brilliant content, plated shine dials were made utilizing a galvanic covering measure. There are a few adaptations of the GMT-Master 1675 overlaid gleam dials to note.

GMT-Master 1675 overlaid gleam dials (1959 – 1966)

1959 – 1960: Dials have “Authoritatively Certified Chronometer” text, known as the “OCC Dial”

1960 onward: Dials have “Standout Chronometer Official Certified” text

1959 – 1963: Dials have a part ring

1963 onward: Dials don’t have a part ring

Around 1966, Rolex supplanted these dials with what is alluded to as matte dials that are described by matte dark foundations and white textual style. Authorities have identified a few variants of the matte dials, classified as Mark 0 to Mark 6.

GMT-Master 1675 matte dials (1966 – 1980)

Mark 0: (1966 – 1967) – Small bolt on the GMT hand, indistinguishable content to past plated dials

Mark 1: (1967 – 1972) – Thin prongs on the Rolex crown logo, bigger GMT hand bolt (compared to Mark 0), and long center bar in the “E” of “ROLEX.” Also known as the “Long E” dial.

Mark 2: (1972-75, 1977-78) –”ROLEX” is written in a thick text style and the letters “L” and “E” are situated nearer together

Mark 3: (1975-78) –Smaller lume plots set further from the part ring. Otherwise called the Radial dial

Mark 4: (1978 – 1979) – Larger lume plots than Mark 3, the correct vertical line in “M” of “Expert” sits over the center of “C” in “Chronometer”

Mark 5: (1978 – 1980) –Similar to Mark 4 however the correct vertical line of “M” in “Expert” is lined up with the correct side of “C” in “Chronometer”

Mark 6: (1980) –Tallest Rolex Crown logo of the relative multitude of matte dials and the words “Clam” and “Never-ending” are set nearer together. Utilized on the last bunch of GMT-Master 1675 models so if this dial is found on more seasoned models, it is likely a help dial.

The yellow gold GMT-Master 1675/8 and the two-tone GMT-Master 1675/3 have what are known as “areola dials” highlighting distending gold hour markers loaded up with radiant material. Likewise, it is conceivable to discover gold GMT-Master ref. 1675/8 with straight hour hands (regularly alluded to as Concord hands) rather than the more recognizable Mercedes-style hands.

GMT-Master 1675 Movements

Rolex didn’t just develop the outside of the GMT-Master 1675 yet the developments inside the cases as well. Notwithstanding the particular type, all GMT-Master 1675 watches run on programmed developments with double cross zones and a date pointer. The two hands on all GMT-Master watches are synchronized, which implies that setting the reference time requires turning the bezel to adjust the fitting numeral to the GMT hand. Also, all GMT-Master 1675 developments are non-quickset date ones, which requires persistently moving the hands past 12 PM to change the date in the window to the following day.

The most punctual instances of the GMT-Master ref. 1675 ran on the Caliber 1535 – which didn’t have the Microstella change – and these uncommon variations are normally accompanied by “OCC” dials. In any case, Rolex immediately changed to the Caliber 1565 (with Microstella guideline and a recurrence of 18,000bph) inside the year and therefore outfitted the GMT-Master 1675 with the “SCOC” dial.

Around 1965, Rolex supplanted the Caliber 1565 with the higher-beat Caliber 1575, which had indistinguishable usefulness however worked at 19,600 beats each hour. At last, in 1971, Rolex added the hacking highlight to Caliber 1575, which implies that the seconds hand comes to a complete stop when the winding crown is pulled out for exact time-setting.

GMT-Master 1675 Caliber Evolution

1959: Caliber 1535

1960 – 1965: Caliber 1565

1965 – 1971: Caliber 1575 without hacking

1971 – 1980: Caliber 1575 with hacking

GMT-Master 1675 Price and Collectability

Since the Rolex GMT Master 1675 was delivered for so long, it is one of the simpler vintage Rolex looks for authorities to gain. Nonetheless, unmistakably not all ref. 1675 varieties are viewed as equivalent. As a rule, more seasoned models with desired highlights like overlaid dials and uncommon attributes will be worth more to gatherers than more up to date cycles with more normal qualities. However, for fresher authorities that need to begin a vintage Rolex assortment, almost any illustration of the GMT Master 1675 is a brilliant spot to start.

How Much Is A GMT-Master 1675?

As is the situation with most vintage Rolex sports watches, costs for the GMT-Master 1675 can go from available to cosmic. Two-tone GMT-Master 1675/3 watches are by and large the most reasonable, beginning simply above $10,000.

Stainless steel GMT-Master 1675 “Pepsi” watches are the most well known forms, and costs regularly start at around $12,500. Notwithstanding, costs can soar if the GMT-Master 1675 has pined for subtleties like overlaid dials, Pointed crown-watches, part rings, etc. The most costly GMT-Master 1675 at any point sold was one worn by Marlon Brando in the film, Apocalypse Now, selling for nearly $2 million at a closeout in 2019. It was a steel GMT-Master 1675 (around 1972) with a Mark 4 matte dial, a missing bezel, and fitted with a non-unique tie alongside a “M. Brando” etching on the caseback done by the actor.

As expected, full 18k yellow gold GMT-Master 1675/8 watches can be expensive gratitude to their valuable metal development. These vintage Rolex observes typically start around $25,000, and (as a rule) the models with earthy colored dials and bezels regularly sell for a premium compared to those with dark dials and bezels.

The GMT-Master 1675 is a flat out exemplary reference in the realm of vintage Rolex sports watches. The wealth of varieties makes it an especially fun watch for prepared authorities to study and seek after. Then again, notorious highlights like a Pepsi bezel and the common sense of double time usefulness are engaging for fresher gatherers as well, and a Rolex 1675 will consistently hold an exceptionally decent spot in any vintage extravagance watch collection.