Reference:gmt-master: Difference between revisions

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The first watch Rolex ever built for airline pilots, and one of its most copied designs. Launched in 1955 for Pan Am flight crews, the GMT-Master carries a fourth hand and a 24-hour bezel so the wearer can track two time zones at once. Bakelite turned to aluminum, steel split from gold and two-tone, and the GMT-Master became the GMT-Master II when the local hour hand learned to move on its own. Color branches — Pepsi, Root Beer, Coke, black — ended up carrying as much collector weight as the reference numbers themselves.
The GMT-Master is Rolex's original airline watch: a fourth hand, a 24-hour bezel, and two time zones on the wrist. Rolex launched it in 1955 for Pan Am crews, then split the line in 1982 when the GMT-Master II gave the local hour hand independent adjustment.
 
The fast map is simple: bakelite 6542 first, the long 1675 vintage core second, quick-set five-digit GMT-Master references third, independent-hour GMT-Master II from 1982, and ceramic GMT-Master II from 2005. Pepsi, Root Beer, Coke, and black then become the family's own collector language.


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== Ceramic GMT-Master II 5-digit (2005–2019) ==
== Ceramic GMT-Master II 5-digit (2005–2019) ==


The Cerachrom era opens the modern chapter of the line. Rolex launched the solid yellow-gold [[Reference:116718LN|116718LN]] at Baselworld 2005 to mark the fiftieth anniversary of the GMT-Master and brought Cerachrom to the GMT platform with that release. Rolesor followed in 2006 with the [[Reference:116713LN|116713LN]], steel in 2007 with the [[Reference:116710LN|116710LN]]. The two-colour ceramic patent arrived with the 2013 [[Reference:116710BLNR|116710BLNR]] Batman and was extended to red-and-blue on the 2014 white-gold [[Reference:116719BLRO|116719BLRO]]. All five references were retired at the 2019 Baselworld transition to the slimmer 126710 case.
The Cerachrom era opened in 2005 with the yellow-gold [[Reference:116718LN|116718LN]] and caliber 3186. Rolesor followed in 2006, steel in 2007, the blue-black Batman in 2013, and the white-gold ceramic Pepsi in 2014. These are the thick Super Case GMTs before the slimmer 126710 generation.


The case across the family is the Super Case generation Rolex rolled out from 2005, wider at the lugs and heavier at the crown guards than the 16710 it replaced. Caliber 3186 powers the documented 5-digit ceramic run, with the blue Parachrom hairspring, Paraflex shock protection, and the revised GMT wheel.
Caliber 3186 runs across the documented family.


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== Ceramic GMT-Master II 6-digit (2018–present) ==
== Ceramic GMT-Master II 6-digit (2018–present) ==


The current generation. Rolex launched the steel Pepsi [[Reference:126710BLRO|126710BLRO]], the Rolesor Everose [[Reference:126711CHNR|126711CHNR]], and the solid-Everose [[Reference:126715CHNR|126715CHNR]] at Baselworld 2018, then added the Batman [[Reference:126710BLNR|126710BLNR]] on Jubilee in 2019, the left-handed [[Reference:126720VTNR|126720VTNR]] in 2022, the yellow-gold GRNR pair in 2023, and the steel [[Reference:126710GRNR|126710GRNR]] in 2024. Caliber 3285 runs across every reference, with the Chronergy escapement and a 70-hour power reserve. The Jubilee bracelet returned to the GMT-Master II Professional line for the first time since the 1675 era.
The current ceramic generation starts in 2018 with the steel Pepsi [[Reference:126710BLRO|126710BLRO]] and caliber 3285. Jubilee returned, the case slimmed down from the Super Case, and the line then expanded into Root Beer, Batman, Destro, and GRNR branches. This is the modern 70-hour GMT-Master II platform.


The case moved to a narrower geometry than the Super Case that came before it, roughly 11.9–12.5mm thick depending on case material. Fratello puts the 126710BLNR at 12.5mm against the thicker 116710BLNR. Rolex dropped the steel [[Reference:126710BLRO|126710BLRO]] and the white-gold [[Reference:126719BLRO|126719BLRO]] from the catalogue at Watches & Wonders 2026 per Robb Report's discontinuation coverage.
The steel Pepsi and the white-gold Pepsi left the catalogue in 2026.


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== Color and metal logic ==
== Color and metal logic ==


Recurring branch identities run across the reference numbers and sometimes matter more than the digits themselves. The red-and-blue Pepsi bezel starts with the steel [[Reference:6542|6542]] and has stayed the default visual identity of the line ever since. The brown-and-gold Root Beer bezel begins on the two-tone 1675/3 and gold 1675/8 in the early 1970s, then carries forward into the [[Reference:16753|16753]], [[Reference:16758|16758]], [[Reference:16713|16713]], and the brown side of the [[Reference:16718|16718]]. The red-and-black Coke bezel arrives with the first GMT-Master II, the [[Reference:16760|16760]], and stays associated mainly with that reference and the early [[Reference:16710|16710]]. Gold and two-tone GMT-Masters have been part of the family from the earliest production onward.
Color branches matter almost as much as reference numbers here. Pepsi starts with the steel [[Reference:6542|6542]] and stays the default GMT look. Root Beer starts with the two-tone 1675/3 and gold 1675/8, then carries forward through later gold and two-tone references. Coke belongs mainly to the GMT-Master II era from the [[Reference:16760|16760]] onward. Gold and two-tone watches are part of the main line from early on, not side branches.


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Revision as of 13:48, 23 April 2026


The GMT-Master is Rolex's original airline watch: a fourth hand, a 24-hour bezel, and two time zones on the wrist. Rolex launched it in 1955 for Pan Am crews, then split the line in 1982 when the GMT-Master II gave the local hour hand independent adjustment.

The fast map is simple: bakelite 6542 first, the long 1675 vintage core second, quick-set five-digit GMT-Master references third, independent-hour GMT-Master II from 1982, and ceramic GMT-Master II from 2005. Pepsi, Root Beer, Coke, and black then become the family's own collector language.

Vintage Rolex GMT-Master advertising — the watch designed for Pan Am crews
Vintage Rolex GMT-Master advertising — the watch designed for Pan Am crews

Early GMT-Master (1955–1959)

The experimental years. The case had no crown guards, the 24-hour bezel was moulded from bakelite and cracked easily, and a gold branch with alpha hands ran alongside the red-and-blue (Pepsi) steel watch. Most surviving examples carry later service inserts; the original bakelite rarely survived daily wear.

Reference Production Movement Case Bezel Key distinction
6542 1955–1959 1036 / 1065 / 1066 38mm SS or 18k YG Bakelite Pepsi (steel), bakelite brown (gold) First GMT-Master; no crown guards; fragile bakelite insert

Long vintage core (1959–1980)

The reference that turned the GMT-Master from an experiment into an institution. Crown guards arrived with the 1675, along with an aluminum bezel insert (replacing the fragile bakelite) and a twenty-year production run long enough to hold several distinct watches under one number. Early pointed crown guards, known as PCG, gave way to rounded guards; gilt dials gave way to matte; and the steel watch was joined by a gold branch and a two-tone Root Beer branch.

Reference Production Movement Case Branches Key distinction
1675 1959–1979 1565 early, 1575 later 40mm SS, 18k YG, or two-tone Steel, 1675/8 gold, 1675/3 Root Beer Core vintage GMT-Master; PCG to rounded guards, gilt to matte

Transitional GMT-Master (1979–1988)

The five-digit quick-set era on the GMT-Master side of the family split. Caliber 3075 added a quick-set date and a higher beat rate but kept the older linked-hand GMT logic, in which the 24-hour hand tracks the local hour hand rather than moving on its own. Acrylic crystals held through most of the run. The branch map also gets busier here, with steel, two-tone, and solid-gold references all in production at once.

Reference Production Movement Case Branches Key distinction
16750 1979–1988 3075 40mm SS Matte to glossy Pepsi, black, spider Last steel GMT-Master with acrylic crystal; quick-set date
16753 1979–1988 3075 40mm SS + 18k YG Brown Root Beer, black Two-tone continuation of the Root Beer line
16758 1979–1988 3075 40mm 18k YG Brown Root Beer, black Last gold GMT-Master with older linked-hand logic

GMT-Master II (1982–2007)

The functional break in the family. Caliber 3085 in the 16760 introduced an independently adjustable local hour hand, which turned the 24-hour bezel into a third-time-zone tool rather than a second-time-zone aid. The thick transitional 16760 gave way to the slimmer 16710 in 1989, and the line spent nearly two decades on that reference before the ceramic era rewrote the watch.

Reference Production Movement Case Branches Key distinction
16760 1983–1987 3085 40mm SS (thick) Coke, black First GMT-Master II; "Fat Lady" / "Sophia Loren"
16710 1989–2007 3185, late 3186 40mm SS Pepsi, Coke, black Long neo-vintage steel run; late stick-dial 3186 sub-branch
16713 1989–2007 3185, late 3186 40mm SS + 18k YG Brown, black Two-tone GMT-Master II branch
16718 1989–2007 3185, late 3186 40mm 18k YG Black well-documented, brown thinner Solid-gold GMT-Master II branch

Late GMT-Master (1988–1999)

The last reference on the original side of the family split. Sapphire crystal, caliber 3175, and a choice of Pepsi or black bezel. The 16700 kept the older linked-hand GMT logic rather than adopting the independent hour hand of the GMT-Master II references running alongside it. That mechanical distinction kept the two lines separate right to the end.

Reference Production Movement Case Branches Key distinction
16700 1988–1998/1999 3175 40mm SS Pepsi, black Last GMT-Master; tritium to Luminova transition

Ceramic GMT-Master II 5-digit (2005–2019)

The Cerachrom era opened in 2005 with the yellow-gold 116718LN and caliber 3186. Rolesor followed in 2006, steel in 2007, the blue-black Batman in 2013, and the white-gold ceramic Pepsi in 2014. These are the thick Super Case GMTs before the slimmer 126710 generation.

Caliber 3186 runs across the documented family.

Reference Production Movement Case Branches Key distinction
116718LN 2005–2019 3186 40mm 18k YG Black dial, green anniversary dial First Cerachrom GMT-Master II; caliber 3186 debut
116713LN 2006–2019 3186 40mm Rolesor YG Single gloss-black configuration First Cerachrom GMT-Master II to reach steel-in-case form
116710LN 2007–2019 3186 40mm SS Black dial with green signature line First steel GMT-Master II with ceramic bezel
116710BLNR 2013–2019 3186 40mm SS Blue-and-black Batman First two-colour Cerachrom; patented process
116719BLRO 2014–2019 3186 40mm 18k WG Black dial -0001, blue dial -0002 (2018) First ceramic Pepsi; white gold only

Ceramic GMT-Master II 6-digit (2018–present)

The current ceramic generation starts in 2018 with the steel Pepsi 126710BLRO and caliber 3285. Jubilee returned, the case slimmed down from the Super Case, and the line then expanded into Root Beer, Batman, Destro, and GRNR branches. This is the modern 70-hour GMT-Master II platform.

The steel Pepsi and the white-gold Pepsi left the catalogue in 2026.

Reference Production Movement Case Branches Key distinction
126710BLRO 2018–2026 3285 40mm SS Jubilee -0001, Oyster -0002 (2021) First steel ceramic Pepsi; Jubilee return
126711CHNR 2018–present 3285 40mm Rolesor Everose Single CHNR configuration First two-colour Cerachrom after BLNR/BLRO; "Cough Syrup"
126715CHNR 2018–present 3285 40mm solid Everose Black dial -0001, Tiger Iron -0002 (2025) Solid-Everose Rootbeer halo
126710BLNR 2019–present 3285 40mm SS Jubilee Batgirl, Oyster Batman (2021) Batman on cal. 3285; first Jubilee Batman
126720VTNR 2022–present 3285 40mm SS Oyster -0001, Jubilee -0002 First modern left-crown Rolex sports watch; Sprite/Destro
126713GRNR 2023–present 3285 40mm Rolesor YG Single GRNR configuration on Jubilee Return of yellow Rolesor; first precious-metal Jubilee GMT
126718GRNR 2023–present 3285 40mm solid YG Black dial, Tiger Iron dial (2025) Return of solid yellow gold to the line
126710GRNR 2024–present 3285 40mm SS Oyster -0001, Jubilee -0002 Bruce Wayne/Ghost; steel conclusion of the GRNR family

Movement progression

Caliber Frequency Hacking / quick-set Used in Notes
1036 / 1065 / 1066 18,000 vph no / no 6542 Earliest GMT-specific movements; picture still unresolved
1565 18,000 vph no / no 1675 (early) First stable 1675 caliber
1575 19,800 vph hacking from ~1971 1675 (late) Long-run 1675 caliber; sometimes signed 1570
3075 28,800 vph yes / yes 16750, 16753, 16758 Five-digit quick-set upgrade; still linked-hand GMT
3085 28,800 vph yes / yes 16760 First independently adjustable local hour hand
3175 28,800 vph yes / yes 16700 Last linked-hand GMT-Master caliber
3185 28,800 vph yes / yes 16710, 16713, 16718 Long neo-vintage GMT-Master II movement
3186 28,800 vph yes / yes late 16710, 16713, 16718; all 5-digit ceramic (116710LN, 116710BLNR, 116713LN, 116718LN, 116719BLRO) Parachrom hairspring, revised GMT wheel; standard across the ceramic era
3285 28,800 vph yes / yes All 6-digit ceramic references (126710BLNR, 126710BLRO, 126710GRNR, 126711CHNR, 126713GRNR, 126715CHNR, 126718GRNR, 126720VTNR) Chronergy escapement, 70-hour reserve, Superlative -2/+2 sec/day

Color and metal logic

Color branches matter almost as much as reference numbers here. Pepsi starts with the steel 6542 and stays the default GMT look. Root Beer starts with the two-tone 1675/3 and gold 1675/8, then carries forward through later gold and two-tone references. Coke belongs mainly to the GMT-Master II era from the 16760 onward. Gold and two-tone watches are part of the main line from early on, not side branches.

Collecting context

The GMT-Master market rewards different habits than the Submariner market, even when the watches overlap in period. The Submariner collects around case shape, military use, and dial text. The GMT-Master collects just as much around bezel color, travel mythology, and branch identity.

The same caution comes up again and again across the family. Original delivery is not the same thing as period-correct fitment, and a watch that wears period parts correctly today may never have left the factory that way. Bracelet dates date the bracelet, not the watch head. Service inserts are common on every reference and nearly universal on the earliest ones, where the bakelite originals rarely survived. Nickname language is useful shorthand, but Pepsi, Coke, Root Beer, and plain black each cover a range of dial and bezel variants, and the labels can flatten real differences if used too loosely.


The modern ceramic era now has its own two family hubs. The 5-digit Cerachrom references from 2005–2019 are covered in the 5-digit ceramic family, which walks through the two-colour ceramic patent story and the 116718LN / 116713LN / 116710LN / 116710BLNR / 116719BLRO rollout. The current 6-digit generation from 2018 onward is covered in the 6-digit family, which runs across the caliber 3285 platform, the Jubilee return, the 126710BLRO Pepsi lifecycle through to its 2026 discontinuation, the Rootbeer pair, the GRNR family, and the left-handed Destro.

Sources

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