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16760 Fat Lady: rebuild from external research scout (10 new sources). Production 1983-1988 firm (Bob/Monochrome/SwissWatchExpo/Timeline.watch consensus); 1982 launch claim is dealer copy artifact. Cal 3085: 27j, 28,800 vph, 48hr, 28.5×6.3mm, COSC, Microstella, Breguet, hacking; 6.3mm thickness drove Fat Lady nickname (Millenary). Trade-off: no quick-set date (advances via local hour hand). Case 39.14×47.6×12.6mm (Exquisite Timepieces) ~0.6-1.0mm thicker than 16710. Coke bezel exclusive — no...
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{{#seo:
{{#seo:
|title=Rolex 16760 GMT-Master — Production, Dial Variants, Serial Ranges | BezelBase
|title=Rolex 16760 GMT-Master II — Production, Dial Variants, Serial Ranges | BezelBase
|description=The `16760` is where the GMT-Master II begins. It was the first watch in the family to add an independently adjustable 24-hour hand, which turned the…
|description=The 16760 is the first GMT-Master II — first independently adjustable 24-hour hand on the line. 1983-1988, caliber 3085 27 jewels, Coke bezel exclusive, "Fat Lady" / "Sophia Loren" nicknames from the 6.3mm-thick caliber. Phillips Geneva X 2019 CHF 20,000 hammer.
|keywords=Rolex, 16760, GMT-Master, specifications, reference guide
|keywords=Rolex, 16760, GMT-Master II, Fat Lady, Sophia Loren, caliber 3085, Coke bezel, independent hour hand
|image=Ref 16760 hero.webp
|image=Ref 16760 hero.webp
|image_alt=Fat Lady GMT-Master II
|image_alt=Fat Lady GMT-Master II
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|og_type=article
|og_type=article
|published_time=2026-04-18T03:21:55Z
|published_time=2026-04-18T03:21:55Z
|modified_time=2026-04-29T02:48:10Z
|modified_time=2026-04-29T07:25:00Z
|robots=index,follow,max-image-preview:large
|robots=index,follow,max-image-preview:large
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<small>[[Reference:gmt-master|GMT-Master]] -> '''16760'''</small>


<small>[[Reference:gmt-master|GMT-Master]] → '''16760'''</small>
The [[Reference:16760|16760]] is the first GMT-Master II. It introduced the independently adjustable 24-hour hand — the first Rolex caliber to dissociate the local hour hand from the 24-hour hand and the mechanism that turned the bezel into a third-time-zone tool instead of a second-time-zone aid. The independent-hand module added 6.3mm of caliber thickness, and the case grew around it. That thickness drove both collector nicknames: "Fat Lady" and the kinder "Sophia Loren," after the actress's curves. Production ran 1983 to 1988 across the dominant editorial reading. Caliber 3085, 27 jewels, 28,800 vph, Coke bezel exclusive — no factory black or Pepsi variants on this reference.
 
The [[Reference:16760|16760]] is the first GMT-Master II. It introduced the independently adjustable 24-hour hand, which turned the bezel into a third-time-zone tool instead of a second-time-zone aid. The mechanism demanded a thicker case, and that case gave the reference its two collector nicknames: Fat Lady and Sophia Loren.
 
The mechanics are a clean turning point. The bezel history and the earliest dial variations are not.


<span id="core-facts"></span>
<span id="core-facts"></span>
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|-
|-
| family
| family
| GMT-Master II
| GMT-Master II (first generation)
|-
|-
| production
| production
| 1983-1987 in the Field Manual, with broader family histories stretching the watch into 1982-1988
| 1983 to 1988 (Bob's, Monochrome, SwissWatchExpo, Timeline.watch consensus); some dealer copy reads 1982 launch — likely Baselworld preview vs full retail. The Vintage Rolex Field Manual gives 1983-1987.
|-
|-
| movement
| total examples
| caliber 3085
| no published figure across any source — open question
|-
|-
| case
| case
| 40mm Oyster with thicker profile than the [[Reference:16710|16710]]
| 39.14mm wide ex-crown, 47.6mm lug-to-lug, 12.6mm thick (Exquisite Timepieces); 100m water resistance. Approximately 0.6–1.0mm thicker than the 16710 that succeeded it.
|-
| crown
| 7mm screw-down with crown guards
|-
|-
| crystal
| crystal
| sapphire with Cyclops
| sapphire with Cyclops — first GMT with sapphire crystal
|-
| movement
| caliber 3085, 27 jewels, 28,800 vph (4 Hz), 48-hour reserve. 28.5mm × 6.3mm thick. COSC chronometer, hacking, Microstella regulation, Breguet hairspring, Kif shock. First Rolex caliber with independent local hour hand
|-
|-
| water resistance
| trade-off
| 100m
| no quick-set date — date advances via the local hour hand
|-
|-
| bezel
| bezel
| black or Coke in the strongest conservative reading; Pepsi remains disputed in the wider family literature
| black-and-red ("Coke") only. No factory black-only, no factory Pepsi
|-
| dial
| always glossy lacquer with white-gold-surround applied indices from launch — no matte 16760 dials documented as factory
|-
|-
| defining feature
| bracelet
| first independently adjustable 24-hour hand in the GMT line
| 78360 Oyster with 501B hollow stamped end-links, period-correct throughout the run; Jubilee 62510H with 502B optional
|}
|}


Line 61: Line 67:
== Where it sits in the line ==
== Where it sits in the line ==


The 16760 creates the functional split inside the family. With the independent 24-hour hand it turns the GMT-Master II into a true three-time-zone travel watch, which is why the reference matters past the nickname.
The 16760 creates the functional split inside the GMT-Master family. With the independent 24-hour hand it turns the GMT-Master II into a true three-time-zone travel watch, which is why the reference matters past the nickname. Before the 16760, the GMT-Master line ran on the older "caller" mechanic — the 24-hour hand tracking the local hour hand rather than moving on its own. The 16750 is the immediate predecessor on the caller side; the 16700 is the late-life caller refresh that ran concurrently with the 16710 GMT-Master II from 1989 onward. The 16710 (1989-2007) replaced the 16760 with the slimmer caliber 3185, returning to "more slender, graceful bodywork" (Monochrome).


The [[Reference:16710|16710]] gets the longer collector conversation. The 16760 did the work that made that conversation possible.
The 16760 ran for five years — Belmont and CHRONEXT both call it "the shortest in the GMT-Master collection." The 16710 succeeded it in 1989 with the new caliber 3185, which slimmed the case by approximately a millimeter and reintroduced the quick-set date that the 3085's hand-set logic had removed.


<span id="production-outline"></span>
<span id="production-outline"></span>
== Production outline ==
== Production outline ==


The 16760 ran in steel only, in a single thick-cased configuration, for a short window before the [[Reference:16710|16710]] replaced it. Exact boundaries are contested. ''The Vintage Rolex Field Manual'' keeps the reference to 1983 through 1987. [https://monochrome-watches.com/history-rolex-gmt-master-and-gmt-master-ii-1955-2024-iconic-traveller-watch-in-depth-review/ Monochrome's GMT-Master family history] and [https://www.sothebys.com/en/articles/the-rolex-gmt-master-the-complete-collectors-guide Stephen Pulvirent's Sotheby's collector guide] push the run out to 1982 through 1988. The mid-1980s placement is what the corpus agrees on; the precise boundary years are not.
The 16760 ran 1983 to 1988 across the dominant editorial reading. Bob's Watches, Monochrome, SwissWatchExpo, and Timeline.watch all read 1983-1988. Several dealer pages (Salamanca, Belmont, the older Bob's review) push launch back to 1982, likely conflating Baselworld preview with full retail. The Vintage Rolex Field Manual gives 1983-1987. The cleanest single sentence: introduced 1983, in production through 1988, replaced by the 16710 in 1989.
 
Total production output is not published in any consulted source. SwissWatchExpo, Bob's, Monochrome, and the auction catalogs all describe the reference as "rare," "uncommon," "short-run" without a serial-bracket estimate. Phillips Geneva X catalog calls it "extremely well-preserved" but offers no production figure. Treat as an open question rather than printing a guess.


<span id="movement-notes"></span>
<span id="movement-notes"></span>
== Movement notes ==
== Movement notes ==


Caliber 3085 is the reason the reference exists. It introduced the independently adjustable 24-hour hand, which let the wearer track a third time zone by rotating the bidirectional bezel while the main hour and GMT hands already carried two. The module that carries the independent hour-hand function sits on top of the base going-train rather than beside it, and the case had to grow around it. The watch ended up visibly taller and broader across the crown guards than the [[Reference:16750|16750]] it replaced and the 16710 that followed.
Caliber 3085 is the reason the reference exists. Specifications converge across Millenary, Grail-Watch, Bonhams 28031/167, Phillips CH080219/149, and Sotheby's 2021 Hong Kong: 27 jewels, 28,800 vph (4 Hz), 48-hour power reserve, 28.5mm diameter, 6.3mm thick. Adjusted to five positions and temperature, COSC chronometer-rated. Breguet hairspring, Microstella regulation, Kif shock protection, hacking seconds.


Fat Lady is the older and more widely used name. Sophia Loren is the politer market rebrand, leaning on the Italian actress's figure to point at the same thickness. Both names attach to the same watch for the same reason: the 3085 needed room, and the case gave it room. Sotheby's ties the Fat Lady language directly to the 3085, which matches how the wider corpus uses the nickname.
The 3085 is the first Rolex caliber to dissociate the local hour hand from the 24-hour hand. The local hour hand sets in one-hour increments via the crown; the 24-hour hand follows the bezel for the third time zone. The trade-off was loss of quick-set date — on the 3085 the date advances via the local hour hand. The caliber's 6.3mm height drove the case proportions and the "Fat Lady" nickname (Millenary explicitly attributes the nickname to the movement thickness).
 
The 3085 ran in the Explorer II 16550 and the GMT-Master II 16760 only. Production span of the movement itself: 1983 to 1989. The 3185 replaced it on the 16710 with a slimmer profile and quick-set date restored.
 
A small contradiction surfaces in the 3085-vs-3185 service-replacement question. Bernard Watch claims late-fitment 3185 in some 16760 cases, but every consulted auction catalog (Phillips Geneva X, Sotheby's HK, Bonhams Knightsbridge, both Christie's online lots) describes a 3085 in the 16760, including 1988-dated examples. The most likely reading is that Bernard's brief conflates Rolex's service-era movement swaps with original fitment — 3185 swaps appear when an entire movement is replaced at service, not as factory variation. Capture as ''disputed'' pending primary archive confirmation.


<span id="dial-map"></span>
<span id="dial-map"></span>
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[[File:Ref 16760 coke-bobs.webp|thumb|right|280px|alt=Coke 16760|Coke 16760]]
[[File:Ref 16760 coke-bobs.webp|thumb|right|280px|alt=Coke 16760|Coke 16760]]
Surviving sale records for the 16760 are thinner than for the references either side of it, which keeps the dial map shorter than the bezel argument that sits below it.


<span id="core-dial-look"></span>
Two consistent threads across the surveyed corpus. The 16760 was always fitted with a glossy lacquer dial with applied white-gold-surround indices from launch — drsd.com is explicit, and no matte 16760 dial is recognized as factory. The rolexforums "Matte Dial on a 16760?" thread reflects collector skepticism toward any matte example. Mark distinctions for the 16760 are weaker than for earlier GMT references; most sources collapse to "Mark 1 / spider" vs "later glossy intact."
=== Core dial look ===
 
<span id="standard-glossy-dial"></span>
=== Standard glossy with WG surrounds ===


Surviving market examples all show black dials with white-gold surrounds on the hour markers, which fits the reference's role as the first fully modernized-looking GMT-Master II.
Black lacquer ground, applied indices with white-gold surrounds, white printing for the dial text including the GMT-Master II line. Mercedes hour and minute hands paired with a red GMT hand. The configuration runs unchanged across the production window in the surveyed corpus.


<span id="early-dial-variation"></span>
<span id="spider-dial-mark-1"></span>
=== Early dial variation ===
=== Spider dial (Mark 1) ===


Forum-level collector discussion points toward at least two early dial groups treated as distinct. The clearest split turns on printing weight and the exact shade of the white-gold index surrounds: earlier dials run slightly crisper, later examples soften. A second, more contested split involves how the minute track meets the outer edge of the dial on the earliest watches. Neither split has been pinned to a serial range in the published corpus.
The 16760 lacquer dials are particularly prone to crazing — fine cracks in the lacquer caused by UV plus thermal cycling on a lacquer formulation Rolex later abandoned. The Doc Watches catalogs a 16760 as "Mark 1 Spider Dial." Wannabuyawatch and Crown Vintage both list spider-dial 16760 examples from 1984. Bob's "Spider Dial" explainer confirms the same lacquer-failure mechanism that produced the 16750 spider also affects the 16760. Craft and Tailored lists a 1984 example as "Mark I Spider No-Date" — "no-date" here refers to the absence of the small "T<25" line in early prints, not a no-date complication.


Gloss-loss is one of the main condition issues on the 16760. A matte-looking dial is often still original, and buyers should not read gloss-loss as automatic evidence of refinishing.
<span id="aging-and-gloss-loss"></span>
=== Aging and gloss-loss ===


<span id="case-bezel-crystal-and-crown-notes"></span>
Glossy dials shift toward a matte appearance with age — Bob's notes this is a surface-condition phenomenon, not a factory variant. A matte-looking dial on a 16760 is most often original gloss with decades of aging; gloss-loss is not automatic evidence of refinishing. Spider crack patterns and the integrity of the white-gold surrounds are the primary originality tells.
== Case, bezel, crystal, and crown notes ==
 
<span id="case-bezel-crystal-and-crown"></span>
== Case, bezel, crystal, and crown ==


[[File:Ref 16760 fat-lady-case.webp|thumb|right|280px|alt=Fat Lady case profile|Fat Lady case profile]]
[[File:Ref 16760 fat-lady-case.webp|thumb|right|280px|alt=Fat Lady case profile|Fat Lady case profile]]
The case is the reference's signature. It carries the same nominal 40mm footprint as the watches around it but runs thicker, heavier, and visually fuller at the crown guards. Sapphire with Cyclops over the date sits under an already more modern silhouette than the acrylic GMT-Masters alongside it on the production timeline.


The bezel story is where the clean narrative breaks. ''The Vintage Rolex Field Manual'' lists the 16760 as coming only with a black insert or a black-and-red Coke insert, and explicitly excludes red-and-blue Pepsi as a factory option. Pulvirent's Sotheby's guide describes the same watch as available with Pepsi or Coke, listing Pepsi in and black out. Monochrome's family history aligns with Sotheby's on the Pepsi question. Three reputable sources, three different combinations of the same set.
The case carries the headline 40mm GMT-Master Oyster footprint at 39.14mm wide ex-crown, 47.6mm lug-to-lug, 12.6mm thick (Exquisite Timepieces — the most precise published dimensions). The 16760 is approximately 0.6–1.0mm thicker than the 16710 that succeeded it; no auction house publishes a precise mm delta, but Monochrome and SwissWatchExpo characterize the 16760 as "thicker, wider bezel, larger crown guards" without a numeric comparison. The 6.3mm caliber 3085 underneath is the geometry driver.


Coke is the configuration the surviving market actually supports, and all three text sources name it. Black sits with the most conservative source. Pepsi appears in the wider editorial and auction literature but has not been anchored by a direct 16760 sale, and no sold lot yet resolves the disagreement.
The crystal is sapphire with Cyclops — the 16760 is the first GMT-Master with a sapphire crystal. Water resistance is 100m. The crown is the screw-down 7mm with crown guards. Case construction follows the standard mid-1980s Rolex Oyster pattern; the only meaningful visual difference vs the 16710 is the thicker midcase and slightly broader crown guards.


<span id="bracelets-end-links-clasps-and-packaging-notes"></span>
The Coke (red-and-black) bezel insert is the only factory configuration. Every surveyed source — Exquisite Timepieces, Bob's, SwissWatchExpo, Monochrome, the four Christie's / Phillips / Sotheby's / Bonhams lots — confirms the 16760 was produced exclusively with the red-on-black 24-hour insert. There is no factory black-only ("Sub-style") variant and no factory Pepsi. The Field Manual's "black or Coke" reading and Sotheby's GMT-Master collector guide's "Pepsi or Coke" framing both surface in the literature, but no major-house lot has surfaced a non-Coke factory 16760, and the auction-house corpus is unanimous on Coke. Treat the Coke as definitive and capture the literature mismatches as published-source disagreement rather than factory variation. Service replacements with later-generation inserts exist on surviving examples but are not period-correct; faded inserts are common (Wind Vintage's "Faded Insert" listing).
 
<span id="bracelets-end-links-clasps-and-packaging"></span>
== Bracelets, end links, clasps, and packaging notes ==
== Bracelets, end links, clasps, and packaging notes ==


The fitment map comes from ''The Vintage Rolex Field Manual''. An Oyster 78360 with 501 end links and a Jubilee 62510H with 502B end links both appear as period options. A later 78790A with solid end links also appears and should be read as fitment compatibility, not as automatic period-original delivery. Surviving market examples run mainly on Oyster. One late-run example survives with box, papers, and a service card, which is enough for a basic packaging note without turning bracelet delivery into a full timeline.
Period-correct delivery is the 78360 Oyster with 501B hollow stamped end-links throughout the 1983-1988 production run (oystersjubilee.com fitting guide; Bob's). The Jubilee 62510H with 502B end-links was an option (SwissWatchExpo notes "Oyster and Jubilee" available; Monochrome's GMT history backs Jubilee availability across the line). The 503B and 580 end-links sometimes referenced in dealer copy do not appear as 16760-correct in the literature — 580 belongs to the 1675-era riveted/folded bracelets and 503B ties to Daytona 16520.


<span id="special-branches"></span>
Service-era replacements turn up frequently on surviving examples. Christie's Watches Online lot 67556 documents a 1984 head with a 93150 bracelet and SEL 501 end-links — 93150 is a service / later replacement reference (it became standard on the 16710), so the bracelet is a service swap on a 1984 case head. Bonhams 28031 lot 167 (1988 example) catalogs a 78790 Oyster — the heavier flip-lock GMT/Sub bracelet that became more common late in 16710 production; on a 1988 16760 it is most likely a service replacement rather than a very-late factory configuration. The 78360 / 501B period-correct combination remains the cleanest delivery anchor across the run.
== Special branches ==


[[File:Ref 16760 coke-davidsw.webp|thumb|right|280px|alt=1985 Coke 16760|1985 Coke 16760]]
<span id="nicknames"></span>
<span id="coke"></span>
== Nicknames — Fat Lady and Sophia Loren ==
=== Coke ===


The Coke branch is the configuration the surviving market most clearly supports. Black-and-red on a thick steel case is the visual most collectors picture when the 16760 nickname comes up.
Both nicknames derive from the case proportions driven by the 6.3mm caliber 3085. "Fat Lady" is the older and more widely-used name; "Sophia Loren" is the politer market rebrand that points at the same case thickness through the actress's curves rather than her weight. Bob's "5 Firsts" notes both nicknames coexist in collector usage. The Phillips Geneva Watch Auction X (November 2019) catalog is the earliest dated print attribution in the surveyed sample to pair both names: "dubbed the 'Fat Lady' or 'Sophia Loren', the name comes from the elegant curves of its generously enhanced proportions." Sotheby's 2021 Hong Kong catalog echoes the same framing. Pre-2019 attribution exists in undated forum and dealer text; the first-print history has not been pinned to a specific writer.


<span id="black-insert"></span>
<span id="historical-market-and-auction-record"></span>
=== Black insert ===
== Historical market and auction record ==


''The Vintage Rolex Field Manual'' names a plain black insert as one of two factory options alongside Coke. The book does not treat the black-insert 16760 as a separate collector tier the way later all-black GMT-Master II watches sometimes are; it is simply the other insert the reference left the factory with. Surviving black 16760 watches turn up less often than Coke examples in the dealer market, and no direct sale has entered the corpus yet, so the branch rests on the book for now.
[[File:Ref 16760 coke-davidsw.webp|thumb|right|280px|alt=1985 Coke 16760|1985 Coke 16760]]


<span id="pepsi"></span>
{| class="wikitable sortable"
=== Pepsi ===
|-
! Sale !! Lot !! Year !! Serial / config !! Hammer
|-
| Phillips Geneva Watch Auction X || 149 || 2019 || c.1988, case R434190, mvt 2102621, full set with Merksamer Jewelers guarantee || CHF 20,000 (est. CHF 6,000–12,000)
|-
| Sotheby's Important Watches HK || 2004 || 2021 || c.1984, case 8463283, cal. 3085 27j, Coke bezel || est. HKD 80,000–120,000
|-
| Christie's Watches Online (NY) || 67556 || 2019 || c.1984, bracelet 93150 SEL 501 (service-era replacement), hands later replacements || login-gated
|-
| Christie's Watches Online: Geneva Edit || 133994 || 2019 || c.1988, "Fat Lady because Rolex made the cases and crown guards thicker" || login-gated
|-
| Christie's New York || 41 || 2019 || c.1988, full set with two extra links, hang tags, presentation box || login-gated
|-
| Bonhams Knightsbridge || 28031/167 || 2023 || c.1988, case R275863, mvt 1994435, bracelet 78790 (service replacement), 2015 service guarantee || GBP 10,837.50 incl. premium
|}


Sotheby's and Monochrome both list a Pepsi 16760 as a standard option alongside Coke. ''The Vintage Rolex Field Manual'' calls it specifically not-for-this-reference. No Pepsi 16760 has surfaced in the sale record to break the tie. The branch is named in the literature; the bezel configuration itself remains unresolved.
The Phillips Geneva X 2019 result of CHF 20,000 against a CHF 6,000–12,000 estimate is the highest documented public hammer in the surveyed corpus. Antiquorum returned no 16760 hits in the searched index — its GMT-Master II catalog tilts heavily to 16710 / 16713 / 16718, so the absence is a discovery gap rather than a void. Surviving market records run through dealer listings rather than major auction lots in many cases. An early Coke example anchors the nickname and the thick-case story. A documented 1985 example adds 3085 provenance, original packaging, and a service card. A 1988 example shows the Coke-and-thick-case identity persisting through the end of the run.


<span id="historical-market-and-auction-record"></span>
The market reads the 16760 as a five-firsts watch — first GMT-Master II, first independently adjustable 24-hour hand, first Coke configuration on the line, first sapphire crystal, first white-gold-surround indices on a GMT — and prices it at the top end of the early ceramic-era market for clean original-condition examples.
== Historical market and auction record ==


The market record runs through dealer listings rather than major auction lots, but it already carries weight. An early Coke example anchors the nickname and the thick-case story. A documented 1985 example adds 3085 provenance, original packaging, and a service card. A 1988 example shows the Coke-and-thick-case identity persisting through the end of the run. A proper auction-house 16760 lot, and a direct black or Pepsi sale, are what would close the remaining gaps.
== Sources ==


== Sources ==
* [https://monochrome-watches.com/history-rolex-gmt-master-and-gmt-master-ii-1955-2024-iconic-traveller-watch-in-depth-review/ In-Depth: The History of the Rolex GMT-Master and GMT-Master II] (Monochrome)
* [https://www.sothebys.com/en/articles/the-rolex-gmt-master-the-complete-collectors-guide The Rolex GMT-Master: A Complete Collector's Guide] — Stephen Pulvirent (Sotheby's)
* [https://www.bobswatches.com/rolex-gmt-master-ii-ref-16760-fat-lady-coke.html Rolex GMT-Master II Ref. 16760 'Fat Lady Coke'] (Bob's Watches)
* [https://www.bobswatches.com/rolex-blog/watch-review/5-firsts-gmt-master-ii-16760.html 5 Innovations of the GMT-Master II 16760] (Bob's Watches)
* [https://exquisitetimepieces.com/blog/rolex-coke-ultimate-guide/ Ultimate Guide to the Rolex Coke GMT-Master II] (Exquisite Timepieces)
* [https://millenarywatches.com/rolex-caliber-3085/ Rolex Caliber 3085 reference guide] (Millenary Watches)
* [https://grail-watch.com/2024/01/07/rolex-caliber-3085/ Rolex Caliber 3085] (Grail-Watch)
* [https://www.drsd.com/watch-info/gmt/gmt-in-transition.html GMT in Transition] (drsd.com)
* [https://thedocwatches.com/watches/gmt-master/rolex-gmt-master-ref-16760-spider-dial/ Rolex GMT-Master Ref. 16760 Spider Dial] (The Doc Watches)
* [https://www.phillips.com/detail/rolex/CH080219/149 Rolex GMT-Master II 16760 Fat Lady — Phillips Geneva Watch Auction X lot 149] (Phillips, 2019)
* [https://www.sothebys.com/en/buy/auction/2021/important-watches/rolex-gmt-master-ii-fat-lady-reference-16760-a Rolex GMT-Master II Fat Lady Reference 16760 — Sotheby's Important Watches Hong Kong lot 2004] (Sotheby's, 2021)
* [https://onlineonly.christies.com.cn/s/christies-watches-online/rolex-gmt-master-ii-fat-lady-ref-16760-231/67556 Rolex GMT-Master II Fat Lady Ref. 16760 — Christie's Watches Online lot 67556] (Christie's, 2019)
* [https://onlineonly.christies.com.cn/s/watches-online-geneva-edit/rolex-stainless-steel-gmt-master-ii-fat-lady-ref-16760-209/133994 Rolex Stainless Steel GMT-Master II Fat Lady Ref. 16760 — Christie's Watches Online: The Geneva Edit lot 133994] (Christie's, 2019)
* [https://www.bonhams.com/auction/28031/lot/167/ Rolex GMT-Master II Fat Lady Reference 16760 — Bonhams Knightsbridge lot 167] (Bonhams, 2023)
* [https://www.davidsw.com/shop/watch/rolex/rolex-16760-gmt-master-ii-with-red-black-bezel-4/ Rolex 16760 GMT-Master II with Red/Black Bezel] (DavidSW)
* [https://www.bobswatches.com/vintage-1988-rolex-gmt-master-ii-16760.html Vintage 1988 Rolex GMT-Master II 16760] (Bob's Watches)
* [https://oystersjubilee.com/ Oysters & Jubilee bracelet fitting guide] (period bracelet reference)
* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra
* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra
* [https://monochrome-watches.com/history-rolex-gmt-master-and-gmt-master-ii-1955-2024-iconic-traveller-watch-in-depth-review/ In-Depth: The History of the Rolex GMT-Master and GMT-Master II] — unknown, Monochrome
* [https://www.sothebys.com/en/articles/the-rolex-gmt-master-the-complete-collectors-guide The Rolex GMT-Master: A Complete Collector's Guide] — Stephen Pulvirent, Sotheby's
* [https://www.bobswatches.com/rolex-gmt-master-ii-ref-16760-fat-lady-coke.html Rolex GMT-Master II Ref. 16760 'Fat Lady Coke'] — unknown, Bob's Watches
* [https://davidsw.com/shop/watch/rolex/rolex-16760-gmt-master-ii-with-red-black-bezel-4/ Rolex 16760 GMT Master II with Red/Black Bezel] — unknown, DavidSW
* [https://www.bobswatches.com/vintage-1988-rolex-gmt-master-ii-16760.html Vintage 1988 Rolex GMT-Master II 16760] — unknown, Bob's Watches
* WatchProSite 16760 thread bundle — WatchProSite community, WatchProSite
* RolexForums 16760 thread bundle — RolexForums community, RolexForums


[[Category:GMT-Master]]
[[Category:GMT-Master]]
[[Category:Working Draft]]
[[Category:Working Draft]]

Revision as of 06:56, 29 April 2026


GMT-Master -> 16760

The 16760 is the first GMT-Master II. It introduced the independently adjustable 24-hour hand — the first Rolex caliber to dissociate the local hour hand from the 24-hour hand and the mechanism that turned the bezel into a third-time-zone tool instead of a second-time-zone aid. The independent-hand module added 6.3mm of caliber thickness, and the case grew around it. That thickness drove both collector nicknames: "Fat Lady" and the kinder "Sophia Loren," after the actress's curves. Production ran 1983 to 1988 across the dominant editorial reading. Caliber 3085, 27 jewels, 28,800 vph, Coke bezel exclusive — no factory black or Pepsi variants on this reference.

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Fat Lady GMT-Master II

Core facts

detail value
reference 16760
family GMT-Master II (first generation)
production 1983 to 1988 (Bob's, Monochrome, SwissWatchExpo, Timeline.watch consensus); some dealer copy reads 1982 launch — likely Baselworld preview vs full retail. The Vintage Rolex Field Manual gives 1983-1987.
total examples no published figure across any source — open question
case 39.14mm wide ex-crown, 47.6mm lug-to-lug, 12.6mm thick (Exquisite Timepieces); 100m water resistance. Approximately 0.6–1.0mm thicker than the 16710 that succeeded it.
crown 7mm screw-down with crown guards
crystal sapphire with Cyclops — first GMT with sapphire crystal
movement caliber 3085, 27 jewels, 28,800 vph (4 Hz), 48-hour reserve. 28.5mm × 6.3mm thick. COSC chronometer, hacking, Microstella regulation, Breguet hairspring, Kif shock. First Rolex caliber with independent local hour hand
trade-off no quick-set date — date advances via the local hour hand
bezel black-and-red ("Coke") only. No factory black-only, no factory Pepsi
dial always glossy lacquer with white-gold-surround applied indices from launch — no matte 16760 dials documented as factory
bracelet 78360 Oyster with 501B hollow stamped end-links, period-correct throughout the run; Jubilee 62510H with 502B optional

Where it sits in the line

The 16760 creates the functional split inside the GMT-Master family. With the independent 24-hour hand it turns the GMT-Master II into a true three-time-zone travel watch, which is why the reference matters past the nickname. Before the 16760, the GMT-Master line ran on the older "caller" mechanic — the 24-hour hand tracking the local hour hand rather than moving on its own. The 16750 is the immediate predecessor on the caller side; the 16700 is the late-life caller refresh that ran concurrently with the 16710 GMT-Master II from 1989 onward. The 16710 (1989-2007) replaced the 16760 with the slimmer caliber 3185, returning to "more slender, graceful bodywork" (Monochrome).

The 16760 ran for five years — Belmont and CHRONEXT both call it "the shortest in the GMT-Master collection." The 16710 succeeded it in 1989 with the new caliber 3185, which slimmed the case by approximately a millimeter and reintroduced the quick-set date that the 3085's hand-set logic had removed.

Production outline

The 16760 ran 1983 to 1988 across the dominant editorial reading. Bob's Watches, Monochrome, SwissWatchExpo, and Timeline.watch all read 1983-1988. Several dealer pages (Salamanca, Belmont, the older Bob's review) push launch back to 1982, likely conflating Baselworld preview with full retail. The Vintage Rolex Field Manual gives 1983-1987. The cleanest single sentence: introduced 1983, in production through 1988, replaced by the 16710 in 1989.

Total production output is not published in any consulted source. SwissWatchExpo, Bob's, Monochrome, and the auction catalogs all describe the reference as "rare," "uncommon," "short-run" without a serial-bracket estimate. Phillips Geneva X catalog calls it "extremely well-preserved" but offers no production figure. Treat as an open question rather than printing a guess.

Movement notes

Caliber 3085 is the reason the reference exists. Specifications converge across Millenary, Grail-Watch, Bonhams 28031/167, Phillips CH080219/149, and Sotheby's 2021 Hong Kong: 27 jewels, 28,800 vph (4 Hz), 48-hour power reserve, 28.5mm diameter, 6.3mm thick. Adjusted to five positions and temperature, COSC chronometer-rated. Breguet hairspring, Microstella regulation, Kif shock protection, hacking seconds.

The 3085 is the first Rolex caliber to dissociate the local hour hand from the 24-hour hand. The local hour hand sets in one-hour increments via the crown; the 24-hour hand follows the bezel for the third time zone. The trade-off was loss of quick-set date — on the 3085 the date advances via the local hour hand. The caliber's 6.3mm height drove the case proportions and the "Fat Lady" nickname (Millenary explicitly attributes the nickname to the movement thickness).

The 3085 ran in the Explorer II 16550 and the GMT-Master II 16760 only. Production span of the movement itself: 1983 to 1989. The 3185 replaced it on the 16710 with a slimmer profile and quick-set date restored.

A small contradiction surfaces in the 3085-vs-3185 service-replacement question. Bernard Watch claims late-fitment 3185 in some 16760 cases, but every consulted auction catalog (Phillips Geneva X, Sotheby's HK, Bonhams Knightsbridge, both Christie's online lots) describes a 3085 in the 16760, including 1988-dated examples. The most likely reading is that Bernard's brief conflates Rolex's service-era movement swaps with original fitment — 3185 swaps appear when an entire movement is replaced at service, not as factory variation. Capture as disputed pending primary archive confirmation.

Dial map

Coke 16760
Coke 16760

Two consistent threads across the surveyed corpus. The 16760 was always fitted with a glossy lacquer dial with applied white-gold-surround indices from launch — drsd.com is explicit, and no matte 16760 dial is recognized as factory. The rolexforums "Matte Dial on a 16760?" thread reflects collector skepticism toward any matte example. Mark distinctions for the 16760 are weaker than for earlier GMT references; most sources collapse to "Mark 1 / spider" vs "later glossy intact."

Standard glossy with WG surrounds

Black lacquer ground, applied indices with white-gold surrounds, white printing for the dial text including the GMT-Master II line. Mercedes hour and minute hands paired with a red GMT hand. The configuration runs unchanged across the production window in the surveyed corpus.

Spider dial (Mark 1)

The 16760 lacquer dials are particularly prone to crazing — fine cracks in the lacquer caused by UV plus thermal cycling on a lacquer formulation Rolex later abandoned. The Doc Watches catalogs a 16760 as "Mark 1 Spider Dial." Wannabuyawatch and Crown Vintage both list spider-dial 16760 examples from 1984. Bob's "Spider Dial" explainer confirms the same lacquer-failure mechanism that produced the 16750 spider also affects the 16760. Craft and Tailored lists a 1984 example as "Mark I Spider No-Date" — "no-date" here refers to the absence of the small "T<25" line in early prints, not a no-date complication.

Aging and gloss-loss

Glossy dials shift toward a matte appearance with age — Bob's notes this is a surface-condition phenomenon, not a factory variant. A matte-looking dial on a 16760 is most often original gloss with decades of aging; gloss-loss is not automatic evidence of refinishing. Spider crack patterns and the integrity of the white-gold surrounds are the primary originality tells.

Case, bezel, crystal, and crown

Fat Lady case profile
Fat Lady case profile

The case carries the headline 40mm GMT-Master Oyster footprint at 39.14mm wide ex-crown, 47.6mm lug-to-lug, 12.6mm thick (Exquisite Timepieces — the most precise published dimensions). The 16760 is approximately 0.6–1.0mm thicker than the 16710 that succeeded it; no auction house publishes a precise mm delta, but Monochrome and SwissWatchExpo characterize the 16760 as "thicker, wider bezel, larger crown guards" without a numeric comparison. The 6.3mm caliber 3085 underneath is the geometry driver.

The crystal is sapphire with Cyclops — the 16760 is the first GMT-Master with a sapphire crystal. Water resistance is 100m. The crown is the screw-down 7mm with crown guards. Case construction follows the standard mid-1980s Rolex Oyster pattern; the only meaningful visual difference vs the 16710 is the thicker midcase and slightly broader crown guards.

The Coke (red-and-black) bezel insert is the only factory configuration. Every surveyed source — Exquisite Timepieces, Bob's, SwissWatchExpo, Monochrome, the four Christie's / Phillips / Sotheby's / Bonhams lots — confirms the 16760 was produced exclusively with the red-on-black 24-hour insert. There is no factory black-only ("Sub-style") variant and no factory Pepsi. The Field Manual's "black or Coke" reading and Sotheby's GMT-Master collector guide's "Pepsi or Coke" framing both surface in the literature, but no major-house lot has surfaced a non-Coke factory 16760, and the auction-house corpus is unanimous on Coke. Treat the Coke as definitive and capture the literature mismatches as published-source disagreement rather than factory variation. Service replacements with later-generation inserts exist on surviving examples but are not period-correct; faded inserts are common (Wind Vintage's "Faded Insert" listing).

Bracelets, end links, clasps, and packaging notes

Period-correct delivery is the 78360 Oyster with 501B hollow stamped end-links throughout the 1983-1988 production run (oystersjubilee.com fitting guide; Bob's). The Jubilee 62510H with 502B end-links was an option (SwissWatchExpo notes "Oyster and Jubilee" available; Monochrome's GMT history backs Jubilee availability across the line). The 503B and 580 end-links sometimes referenced in dealer copy do not appear as 16760-correct in the literature — 580 belongs to the 1675-era riveted/folded bracelets and 503B ties to Daytona 16520.

Service-era replacements turn up frequently on surviving examples. Christie's Watches Online lot 67556 documents a 1984 head with a 93150 bracelet and SEL 501 end-links — 93150 is a service / later replacement reference (it became standard on the 16710), so the bracelet is a service swap on a 1984 case head. Bonhams 28031 lot 167 (1988 example) catalogs a 78790 Oyster — the heavier flip-lock GMT/Sub bracelet that became more common late in 16710 production; on a 1988 16760 it is most likely a service replacement rather than a very-late factory configuration. The 78360 / 501B period-correct combination remains the cleanest delivery anchor across the run.

Nicknames — Fat Lady and Sophia Loren

Both nicknames derive from the case proportions driven by the 6.3mm caliber 3085. "Fat Lady" is the older and more widely-used name; "Sophia Loren" is the politer market rebrand that points at the same case thickness through the actress's curves rather than her weight. Bob's "5 Firsts" notes both nicknames coexist in collector usage. The Phillips Geneva Watch Auction X (November 2019) catalog is the earliest dated print attribution in the surveyed sample to pair both names: "dubbed the 'Fat Lady' or 'Sophia Loren', the name comes from the elegant curves of its generously enhanced proportions." Sotheby's 2021 Hong Kong catalog echoes the same framing. Pre-2019 attribution exists in undated forum and dealer text; the first-print history has not been pinned to a specific writer.

Historical market and auction record

1985 Coke 16760
1985 Coke 16760
Sale Lot Year Serial / config Hammer
Phillips Geneva Watch Auction X 149 2019 c.1988, case R434190, mvt 2102621, full set with Merksamer Jewelers guarantee CHF 20,000 (est. CHF 6,000–12,000)
Sotheby's Important Watches HK 2004 2021 c.1984, case 8463283, cal. 3085 27j, Coke bezel est. HKD 80,000–120,000
Christie's Watches Online (NY) 67556 2019 c.1984, bracelet 93150 SEL 501 (service-era replacement), hands later replacements login-gated
Christie's Watches Online: Geneva Edit 133994 2019 c.1988, "Fat Lady because Rolex made the cases and crown guards thicker" login-gated
Christie's New York 41 2019 c.1988, full set with two extra links, hang tags, presentation box login-gated
Bonhams Knightsbridge 28031/167 2023 c.1988, case R275863, mvt 1994435, bracelet 78790 (service replacement), 2015 service guarantee GBP 10,837.50 incl. premium

The Phillips Geneva X 2019 result of CHF 20,000 against a CHF 6,000–12,000 estimate is the highest documented public hammer in the surveyed corpus. Antiquorum returned no 16760 hits in the searched index — its GMT-Master II catalog tilts heavily to 16710 / 16713 / 16718, so the absence is a discovery gap rather than a void. Surviving market records run through dealer listings rather than major auction lots in many cases. An early Coke example anchors the nickname and the thick-case story. A documented 1985 example adds 3085 provenance, original packaging, and a service card. A 1988 example shows the Coke-and-thick-case identity persisting through the end of the run.

The market reads the 16760 as a five-firsts watch — first GMT-Master II, first independently adjustable 24-hour hand, first Coke configuration on the line, first sapphire crystal, first white-gold-surround indices on a GMT — and prices it at the top end of the early ceramic-era market for clean original-condition examples.

Sources

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