Reference:gmt-master: Difference between revisions

From BezelBase
[checked revision][checked revision]
← Older editNewer edit →
VisualWikitext
Distribute images into relevant sections
Automated migration from deliverables package
Line 1: Line 1:
{{#seo:
{{#seo:
|title=Rolex GMT-Master — BezelBase
|title=Rolex GMT-Master — BezelBase
|description=The Rolex GMT-Master line starts as an airline watch and ends up as one of Rolex's deepest collector rabbit holes. The core idea is simple enough: a…
|description=The first watch Rolex ever built for airline pilots, and one of its most copied designs since. Launched in 1955 for Pan Am flight crews, the GMT-Master…
|keywords=Rolex, gmt-master, GMT-Master, specifications, reference guide
|keywords=Rolex, gmt-master, GMT-Master, specifications, reference guide
|type=article
|type=article
Line 7: Line 7:




[[File:Ref gmt-master hero.webp|thumb|right|300px]]
[[File:Ref gmt-master vintage-poster.webp|thumb|right|300px]]


The first watch Rolex ever built for airline pilots, and one of its most copied designs since. 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.


[[File:Ref gmt-master hero.webp|thumb|right|340px]]
<span id="early-gmt-master-19551959"></span>
The Rolex GMT-Master line starts as an airline watch and ends up as one of Rolex’s deepest collector rabbit holes. The core idea is simple enough: a 24-hour hand, a 24-hour bezel, and a second time zone for long-haul travel. But the family does not stay simple for long. Bakelite becomes aluminum, the GMT-Master becomes the GMT-Master II, steel splits from gold and two-tone, and color branches like Pepsi, Root Beer, and Coke pick up almost as much weight as the reference numbers themselves.
== Early GMT-Master (1955–1959) ==


This page is the current index of the vintage and neo-vintage GMT references covered on Rolexopedia. It focuses on the references where the variation story is richest and where collectors spend the most time arguing about dials, inserts, bracelet fitment, and service parts.
The experimental years. No crown guards, a bakelite 24-hour bezel that cracked easily, and an alpha-handed gold branch alongside the red-and-blue steel watch. Most surviving examples carry later service inserts because the original bakelite was fragile enough to rarely survive daily wear.
 
<span id="core-facts"></span>
== Core facts ==


{| class="wikitable"
{| class="wikitable"
|-
|-
! detail
! Reference
! value
! Production
|-
! Movement
| family
! Case
| GMT-Master / GMT-Master II
! Bezel
! Key distinction
|-
|-
| launch reference
| [[Reference:6542|6542]]
| [[Reference:6542|6542]]
|-
| 1955–1959
| launch year
| 1036 / 1065 / 1066
| 1955 in the broad family histories, with some book-level tables treating 1954 as the start of the first gold branch
| 38mm SS or 18k YG
|-
| Bakelite Pepsi (steel), bakelite brown (gold)
| first major split
| First GMT-Master; no crown guards; fragile bakelite insert
| [[Reference:1675|1675]] replaces [[Reference:6542|6542]] around 1959 and establishes the long vintage core
|-
| functional break
| [[Reference:16760|16760]] in 1982, first GMT-Master II with independently adjustable local hour hand
|-
| last GMT-Master
| [[Reference:16700|16700]], through 1998-1999 depending on source
|-
| main vintage and neo-vintage set covered here
| [[Reference:6542|6542]], [[Reference:1675|1675]], [[Reference:16750|16750]], [[Reference:16753|16753]], [[Reference:16758|16758]], [[Reference:16760|16760]], [[Reference:16700|16700]], [[Reference:16710|16710]], [[Reference:16713|16713]], [[Reference:16718|16718]]
|}
|}


<span id="where-it-sits-in-the-line"></span>
<span id="long-vintage-core-19591980"></span>
== Where it sits in the line ==
== Long vintage core (1959–1980) ==


The GMT-Master sits in the Rolex professional line as the travel watch rather than the dive watch, field watch, or chronograph. The Submariner is about elapsed time under water. The Explorer is about legibility and restraint. The GMT-Master is about keeping one foot in another time zone.
The reference that turned the GMT-Master from an experiment into an institution. Crown guards arrived with the [[Reference:1675|1675]], along with an aluminum insert and a 20-year production run long enough to hold several distinct watches under one number. Early pointed crown guards give way to rounded guards, gilt dials give way to matte, and a gold branch and two-tone Root Beer branch develop alongside the steel watch.


The family also has a cleaner internal split than it first appears.
{| class="wikitable"
|-
! Reference
! Production
! Movement
! Case
! Branches
! Key distinction
|-
| [[Reference:1675|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
|}


* GMT-Master: linked local hour and 24-hour hand, with the bezel doing the work of a second time zone
<span id="transitional-gmt-master-19791988"></span>
* GMT-Master II: independent local hour hand, which turns the bezel into a third-time-zone tool
== Transitional GMT-Master (1979–1988) ==


That mechanical split matters more than the nicknames. It is the real dividing line in the family.
The five-digit quick-set era on the GMT-Master side of the family split. Caliber 3075 adds quick-set date and a higher beat rate, but keeps the older linked-hand GMT logic. Acrylic crystal holds through most of the run. This is also where the line’s branch map gets busier, with steel, two-tone, and solid-gold references all in production at once.


<span id="production-outline"></span>
{| class="wikitable"
== Production outline ==
|-
! Reference
! Production
! Movement
! Case
! Branches
! Key distinction
|-
| [[Reference:16750|16750]]
| 1979–1988
| 3075
| 40mm SS
| Matte to glossy Pepsi, black, spider
| Last steel GMT-Master with acrylic crystal; quick-set date
|-
| [[Reference:16753|16753]]
| 1979–1988
| 3075
| 40mm SS + 18k YG
| Brown Root Beer, black
| Two-tone continuation of the Root Beer line
|-
| [[Reference:16758|16758]]
| 1979–1988
| 3075
| 40mm 18k YG
| Brown Root Beer, black
| Last gold GMT-Master with older linked-hand logic
|}


<span id="the-airline-start"></span>
<span id="gmt-master-ii-19822007"></span>
=== The airline start ===
== GMT-Master II (1982–2007) ==


* [[Reference:6542|6542]] — the first GMT-Master, launched for the Pan Am era with a bakelite bezel and no crown guards
The functional break in the family. Caliber 3085 in the [[Reference:16760|16760]] introduced an independently adjustable local hour hand, which turned the 24-hour bezel into a third-time-zone tool rather than just a second-time-zone aid. The thick transitional [[Reference:16760|16760]] gave way to the slimmer [[Reference:16710|16710]] in 1989, and the line spent nearly two decades there before the ceramic era rewrote the watch.


<span id="the-long-vintage-core"></span>
{| class="wikitable"
=== The long vintage core ===
|-
! Reference
! Production
! Movement
! Case
! Branches
! Key distinction
|-
| [[Reference:16760|16760]]
| 1983–1987
| 3085
| 40mm SS (thick)
| Coke, black
| First GMT-Master II; “Fat Lady” / “Sophia Loren”
|-
| [[Reference:16710|16710]]
| 1989–2007
| 3185, late 3186
| 40mm SS
| Pepsi, Coke, black
| Long neo-vintage steel run; late stick-dial 3186 sub-branch
|-
| [[Reference:16713|16713]]
| 1989–2007
| 3185, late 3186
| 40mm SS + 18k YG
| Brown, black
| Two-tone GMT-Master II branch
|-
| [[Reference:16718|16718]]
| 1989–2007
| 3185, late 3186
| 40mm 18k YG
| Black well-documented, brown thinner
| Solid-gold GMT-Master II branch
|}


* [[Reference:1675|1675]] — the main vintage GMT-Master, approximately 1959-1979, with the reference’s widest variation story
<span id="late-gmt-master-19881999"></span>
== Late GMT-Master (1988–1999) ==


<span id="the-transitional-gmt-master-years"></span>
The last reference on the original side of the family split. Sapphire crystal, caliber 3175, and a choice of Pepsi or black bezel — but crucially, still the older linked-hand GMT logic rather than the independent flying hour hand of the GMT-Master II references it runs in parallel with.
=== The transitional GMT-Master years ===


* [[Reference:16750|16750]] — the quick-set bridge between the long [[Reference:1675|1675]] run and the GMT-Master II era
{| class="wikitable"
* [[Reference:16753|16753]] — the two-tone GMT-Master II-period continuation of the Root Beer line
|-
* [[Reference:16758|16758]] — the solid-gold GMT-Master counterpart to the [[Reference:16750|16750]]
! Reference
! Production
! Movement
! Case
! Branches
! Key distinction
|-
| [[Reference:16700|16700]]
| 1988–1998/1999
| 3175
| 40mm SS
| Pepsi, black
| Last GMT-Master; tritium to Luminova transition
|}


<span id="the-split-years-gmt-master-and-gmt-master-ii-in-parallel"></span>
<span id="movement-progression"></span>
=== The split years: GMT-Master and GMT-Master II in parallel ===
== Movement progression ==


* [[Reference:16760|16760]] — first GMT-Master II, thick case, Coke identity, and the real functional break in the line
{| class="wikitable"
* [[Reference:16700|16700]] — the last GMT-Master, running in parallel with GMT-Master II references until the end of the 1990s
|-
 
! Caliber
<span id="the-long-neo-vintage-gmt-master-ii-run"></span>
! Frequency
=== The long neo-vintage GMT-Master II run ===
! Hacking / quick-set
 
! Used in
* [[Reference:16710|16710]] — the long steel GMT-Master II with Pepsi, Coke, and black branches
! Notes
* [[Reference:16713|16713]] — the two-tone GMT-Master II branch inside the [[Reference:16710|16710]] era
|-
* [[Reference:16718|16718]] — the solid-gold GMT-Master II branch inside the [[Reference:16710|16710]] era
| 1036 / 1065 / 1066
 
| 18,000 vph
Modern ceramic references are not in this first upload tranche yet. This hub is built around the vintage and neo-vintage references already in the research layer.
| no / no
| [[Reference:6542|6542]]
| Earliest GMT-specific movements; picture still unresolved
|-
| 1565
| 18,000 vph
| no / no
| [[Reference:1675|1675]] (early)
| First stable [[Reference:1675|1675]] caliber
|-
| 1575
| 19,800 vph
| hacking from ~1971
| [[Reference:1675|1675]] (late)
| Long-run [[Reference:1675|1675]] caliber; sometimes signed 1570
|-
| 3075
| 28,800 vph
| yes / yes
| [[Reference:16750|16750]], [[Reference:16753|16753]], [[Reference:16758|16758]]
| Five-digit quick-set upgrade; still linked-hand GMT
|-
| 3085
| 28,800 vph
| yes / yes
| [[Reference:16760|16760]]
| First independently adjustable local hour hand
|-
| 3175
| 28,800 vph
| yes / yes
| [[Reference:16700|16700]]
| Last linked-hand GMT-Master caliber
|-
| 3185
| 28,800 vph
| yes / yes
| [[Reference:16710|16710]], [[Reference:16713|16713]], [[Reference:16718|16718]]
| Long neo-vintage GMT-Master II movement
|-
| 3186
| 28,800 vph
| yes / yes
| late [[Reference:16710|16710]], [[Reference:16713|16713]], [[Reference:16718|16718]]
| Rare late Parachrom-era movement
|}


<span id="color-and-metal-logic"></span>
<span id="color-and-metal-logic"></span>
== Color and metal logic ==
== Color and metal logic ==


The family is not only about reference numbers. Recurring branch identities matter almost as much.
Recurring branch identities run across the reference numbers and sometimes matter more than the digits themselves.


* Pepsi starts with the steel [[Reference:6542|6542]] and remains the default visual identity of the line
* Pepsi starts with the steel [[Reference:6542|6542]] and remains the default visual identity of the line
* Root Beer begins with the two-tone and gold branch around 1675/3 and carries into the later two-tone and gold references
* Root Beer begins with the two-tone and gold branch around 1675/3 and 1675/8, then carries forward into [[Reference:16753|16753]], [[Reference:16758|16758]], [[Reference:16713|16713]], and the brown side of [[Reference:16718|16718]]
* Coke arrives with the first GMT-Master II
* Coke arrives with the first GMT-Master II and stays associated mainly with the [[Reference:16760|16760]] and early [[Reference:16710|16710]]
* gold and two-tone GMTs are part of the family from the early period onward, not a late luxury afterthought
* gold and two-tone GMT-Masters are part of the family from the earliest production onward, not a late luxury afterthought
 
<span id="reference-guide"></span>
== Reference guide ==
 
<span id="early-gmt-master"></span>
=== Early GMT-Master ===
 
* [[Reference:6542|6542]] — first GMT-Master, bakelite bezel, no crown guards, steel and gold branches
 
<span id="vintage-core"></span>
=== Vintage core ===
 
* [[Reference:1675|1675]] — the main vintage GMT-Master and the first full reference page that should go up with this family hub
 
<span id="transitional-gmt-master"></span>
=== Transitional GMT-Master ===
 
* [[Reference:16750|16750]] — quick-set date, acrylic crystal, matte to glossy dial transition
* [[Reference:16753|16753]] — two-tone Root Beer and black-dial branches in the GMT-Master II period
* [[Reference:16758|16758]] — solid-gold transitional GMT with black and brown dial branches
 
<span id="gmt-master-ii-and-late-gmt-master-overlap"></span>
=== GMT-Master II and late GMT-Master overlap ===
 
* [[Reference:16760|16760]] — first GMT-Master II, Fat Lady / Sophia Loren, Coke core with unresolved bezel and dial questions
* [[Reference:16700|16700]] — last GMT-Master, sapphire era, Pepsi and black branches
 
<span id="long-neo-vintage-gmt-master-ii"></span>
=== Long neo-vintage GMT-Master II ===
 
* [[Reference:16710|16710]] — steel, long production run, Pepsi / Coke / black, late stick-dial and 3186 sub-branch
* [[Reference:16713|16713]] — two-tone GMT-Master II, black and brown branches, branch map still thinner than steel
* [[Reference:16718|16718]] — solid-gold GMT-Master II, black branch well documented, brown branch still thinner in direct sale material


<span id="collecting-context"></span>
<span id="collecting-context"></span>
== Collecting context ==
== Collecting context ==


The GMT-Master market behaves differently from the Submariner market even when the watches overlap in period. The Submariner tends to collect around case shape, military use, and dial text. The GMT-Master collects just as much around bezel color, travel mythology, and branch identity.
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.
The same caution comes up again and again across the family.
Line 145: Line 238:
* service inserts are common, especially on the earliest references
* service inserts are common, especially on the earliest references
* nickname language is useful, but it can flatten real differences between black, brown, Pepsi, and Coke branches if you let it
* nickname language is useful, but it can flatten real differences between black, brown, Pepsi, and Coke branches if you let it
Modern ceramic references (116710, 126710, 116718, 126715) are not in this first upload tranche yet. This hub is built around the vintage and neo-vintage references already in the research layer.


== Sources ==
== Sources ==

Revision as of 03:35, 18 April 2026


Error creating thumbnail: Unable to save thumbnail to destination
Error creating thumbnail: Unable to save thumbnail to destination

The first watch Rolex ever built for airline pilots, and one of its most copied designs since. 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.

Early GMT-Master (1955–1959)

The experimental years. No crown guards, a bakelite 24-hour bezel that cracked easily, and an alpha-handed gold branch alongside the red-and-blue steel watch. Most surviving examples carry later service inserts because the original bakelite was fragile enough to rarely survive 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 insert and a 20-year production run long enough to hold several distinct watches under one number. Early pointed crown guards give way to rounded guards, gilt dials give way to matte, and a gold branch and two-tone Root Beer branch develop alongside the steel watch.

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 adds quick-set date and a higher beat rate, but keeps the older linked-hand GMT logic. Acrylic crystal holds through most of the run. This is also where the line’s branch map gets busier, 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 just a second-time-zone aid. The thick transitional 16760 gave way to the slimmer 16710 in 1989, and the line spent nearly two decades there 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 — but crucially, still the older linked-hand GMT logic rather than the independent flying hour hand of the GMT-Master II references it runs in parallel with.

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

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 Rare late Parachrom-era movement

Color and metal logic

Recurring branch identities run across the reference numbers and sometimes matter more than the digits themselves.

  • Pepsi starts with the steel 6542 and remains the default visual identity of the line
  • Root Beer begins with the two-tone and gold branch around 1675/3 and 1675/8, then carries forward into 16753, 16758, 16713, and the brown side of 16718
  • Coke arrives with the first GMT-Master II and stays associated mainly with the 16760 and early 16710
  • gold and two-tone GMT-Masters are part of the family from the earliest production onward, not a late luxury afterthought

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
  • bracelet dates do not date the watch head
  • service inserts are common, especially on the earliest references
  • nickname language is useful, but it can flatten real differences between black, brown, Pepsi, and Coke branches if you let it

Modern ceramic references (116710, 126710, 116718, 126715) are not in this first upload tranche yet. This hub is built around the vintage and neo-vintage references already in the research layer.

Sources

Retrieved from "https://bezelbase.org/index.php?title=Reference:gmt-master&oldid=1629"