Rolex GMT-Master in 18 k Yellow Gold Brown Nipple Dial
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ℹ️ 1-month trend
Price change over the past 30 days. Shows the short-term market movement — relevant if you want to buy or sell soon.
ℹ️ 4-month trend
The central metric behind the momentum score. It filters out short-term swings and shows the true, medium-term market trend of this reference.
ℹ️ Volatility
Annualised price fluctuation. Below 10 % = very stable, 10–20 % = normal, above 20 % = volatile. With high volatility the price can change quickly — in both directions. Be cautious about buying without checking the current price.
ℹ️ Momentum score
ChronoCheck's own indicator from 0 to 100, calculated from the 4-month trend, volatility and market direction.
- Above 60 — Upward trend. Good time to sell, prices are rising.
- 40 – 60 — Neutral. Stable price level, no pressure to act.
- Below 40 — Downward trend. Wait or enter at a good price.
ℹ️ Investment Grade A/B/C/D
ChronoCheck's own rating for each reference. A 0–100 point scale, made up of four weighted components:
- Momentum (40 pts) — trend strength from the momentum score.
- Liquidity (25 pts) — number of active live listings.
- Stability (20 pts) — inverse volatility — the calmer, the better.
- Source robustness (15 pts) — number of independent market sources.
- A · 75+ Trend is right, liquidity good, data broad.
- B · 55–74 Solid, but one component weaker.
- C · 35–54 Average, volatility or market breadth weigh on it.
- D · below 35 Downward or too little data — a collector's piece.
Not investment advice. Pure data analysis from aggregated market sources.
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Technical data
Rolex Ref. 1675/8 — Variants and collector names
Known as: GMT-Master 1675/8, Gold GMT-Master, Full Gold GMT, Nipple Dial GMT (gold variant), Root Beer 1675/8, Concorde (platinum/brown bezel variants)
Production phases and changes
- 1959: Introduction of GMT-Master Ref. 1675/8 in 18k yellow gold with Cal. 1565
- 1964: Transition from Pointed Crown Guards (PCG) to Rounded Crown Guards (RCG) on 1675/8
- 1965: Introduction of Caliber 1575 (19,800 vph) beginning availability
- 1966: Transition from Gilt (mirrored) to Matte Dials (Mk0-Mk6 variants)
- 1968: Fuchsia Bezel phenomenon at SN 1.8-1.9M
- 1970: Introduction of Root Beer Bezel (Brown/Cream) for gold variants
- 1971: Hacking seconds (hack function) added to Caliber 1575
- 1975: All-Black (Coke) Bezel option available for steel variants; also occasionally offered on 1675/8
- 1980: End of production for Ref. 1675/8; succeeded by Ref. 16758 (with Cal. 3075, sapphire crystal)
Movement variants
- 1565 (1959–1964) · 18000 bph
- 1575 (1965–1980) · 28800 bph
Bezel variants
- Black Insert 1675/8 "Coke (Black)"
- Pepsi Insert 1675/8 "Pepsi"
- Root Beer Insert 1675/8 "Root Beer"
Dial variants
- Root Beer Dial — Matte brown with gold 'Nipple' markers
- Glossy Gilt Dial MK0 — Rolex / SUPERLATIVE CHRONOMETER OFFICIALLY CERTIFIED / GMT-MASTER
- Nipple Dial (Mk1-Mk6) — Faceted gold hour markers (3D protruding) with luminous core
Crystal variants
- Acrylglas Cyclops
Bracelet variants
- Lederarmband mit Goldschließe Ref. Lederband
- Jubilee (18k YG) Ref. 6311/8
- Oyster Rivet (18k YG) Ref. 7208/8
Serial numbers
- 400000 – 1100000 (1959–1966) — Early 1675/8 production; Crown Guards begin at 1.36M on gold versions
- 1100000 – 1800000 (1966–1968) — Matte Dial era begins; Fuchsia phenomenon appears around 1.8-1.9M
- 1800000 – 1900000 (1968–1969) — Fuchsia Bezel serials — highly sought-after; Mark 1 Matte Dials predominant
- 2000000 – 6500000 (1969–1980) — Later production period; Root Beer & Black Bezel variants from ~1975
Brand profile: Rolex
Rolex is the most counterfeited watch brand in the world. Super-clones (VSF, ARF, Clean — the latter inactive since the 07/2025 raid, with only old stock still circulating) reach 95%+ similarity. Authenticity can almost always only be identified through micro-details and caliber behavior.
- Case back: ALWAYS solid and closed — any display window means it's definitely fake (exception: vintage Ref. 6085 only)
- Minute hand length: genuine Rolex minute hands end EXACTLY at the minute chapter ring. 1 mm too long = fake. The strongest VSF tell.
- Seconds hand: smooth sweep without any hesitation — the slightest tick-tock motion means it's fake
- Cyclops lens (on Date models): must magnify exactly 2.5×, with the date filling almost the entire window
Serial number format: Since 2010, a random alphanumeric combination (e.g. 'G3M9K721'). 2000-2010: a letter plus 6-7 digits. Serial number engraved on the rehaut at 6 o'clock (from ~2005). Older models: between the lug shoulders at 6 o'clock on the case.
Further sources
Buying guide: Rolex GMT-Master in 18 k Yellow Gold Brown Nipple Dial
What matters at this price point
At $157,180 we are no longer talking about an everyday watch but a collector's piece. Every detail drives the price: an original dial can be worth five figures more than a service dial, missing papers noticeably depress the value, and an over-polished bezel is effectively lost money. Anyone buying in this range should take their time and, when in doubt, take a second look.
Watch out for swings: This reference has an above-average volatility of 193.2 percent. In concrete terms: the price can move by several hundred euros within a few weeks. Check the current value before buying or selling — old listings or auction results from two months ago are of little help.
What to look out for when buying?
- Authenticity: The serial number and reference on the case must match the papers. A professional authenticity check of the Rolex GMT-Master in 18 k Yellow Gold Brown Nipple Dial reliably rules out counterfeits.
- Condition: Check scratches on the case and bezel — professional refurbishment can leave traces.
- Service history: A documented service by the manufacturer or a certified watchmaker increases the value.
- Scope of delivery: Box, papers and warranty card make a noticeable price difference on the GMT-Master in 18 k Yellow Gold Brown Nipple Dial.
- Independent certification: The CPS-52 standard covers 52 checkpoints — from the serial number and the timing machine to water resistance. The result is secured on the blockchain and can be verified at any time.
Check the market value live now
Interactive price analysis with momentum indicator and buy/sell signal.
Go to the market value tool →Auction results Rolex GMT-Master in 18 k Yellow Gold Brown Nipple Dial 1675/8
Recent hammer prices for this reference from international auction houses:
| Price | House | Date |
|---|---|---|
| $27,720 | Sotheby's | 06/2026 |
| $85,171 | Phillips | 10/2024 |
| $101,140 | Phillips | 10/2024 |
| $30,521 | Loupe This | 04/2024 |
| $309,341 | Phillips | 09/2023 |