ASSAYAcquisition DossierPublic specimen
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Assay · Acquisition Dossier · Public specimenLUX-AD-2026-0417 · v1.2
Subject of assessment

Rolex GMT-Master
ref. 1675

‘Pepsi’ bezel · circa 1971 · private cross-border sale

Prepared for
Withheld · public specimen
Prepared
18 July 2026
Listing
Private · Munich DE → US
Seller ask
€18,500 · ≈ $20,100
Seller media · 14 photos, 1 document
caseback
dial
insert
clasp
lume
+9
Placeholders — provided media attaches here. Nothing in this dossier is derived from imagery Assay has not seen.
The assay

Negotiate the price and make the purchase conditional on independent physical inspection. Fund only through escrow. Decline if the seller supports neither.

Conditional
Proceed
Only post-inspection, at a corrected price.
Recommended
Negotiate
Reprice to service-dial reality.
Required
Inspect
Resolve originality before funds move.
If unmet
Decline
If escrow or inspection is refused.
Path  →  negotiate  →  escrow  →  independent inspection  →  proceed or decline
How to read this dossier

Two voices run through this document and never blur. The advisor speaks in serif — judgement, reasoning, recommendation. The record speaks in mono — facts, sources, values, confidence. Where they meet, the serif claim always carries a mono trace back to what it rests on.

Every claim is typed by its basis
DOCDocument / fact — a primary record
OBSObservation — read directly from provided media
INFInference — reasoned from the evidence
EXPExpert opinion — a named specialist
CLMCounterparty claim — asserted by the seller
Confidence is an ordinal ladder, not a score
▰▰▰▰EstablishedPrimary document or physical evidence
▰▰▰▱CorroboratedMultiple independent sources agree
▰▰▱▱IndicativeA single source or model inference
▰▱▱▱UnverifiedCounterparty assertion, no independent support
ConflictedSources disagree — unresolved
GapExpected evidence is absent

No level asserts authenticity. Assay does not authenticate watches or guarantee genuineness — these marks describe what the evidence supports and where it stays silent.

01

Decision

This is not a question of real or counterfeit. Nothing in the provided media indicates a forgery, and the reference reads as a correct 1675 from the early 1970s. The value question is how original — and here the evidence and the seller disagree.

The dial presents as a later Rolex service dial and the hands appear relumed; the seller describes the watch as “all original.” That single unresolved conflict is worth roughly $6,000–$10,000 of value, so it must be settled by inspection before funds move, not assumed in either direction. Priced and safeguarded correctly, this is a sound buy.

What would change this view
Inspection confirms a period-correct dial and tritium → proceed toward the upper comparable band; the ask becomes fair.
Seller accepts escrow and inspection but holds the price → proceed near $17,000 with a service reserve.
Independent inspection is refused or impossible → decline; the originality risk cannot be priced remotely.
02

Reference & identification

Each attribute below is stated at the confidence the evidence supports — and no higher. Tap any E-ref to trace it to source.

Attribute
Finding
Basis
Confidence
Model / reference
GMT-Master, ref. 1675
DOC
▰▰▰▰Established
Production era
c. 1971 — serial in the 2.9M range
INF
▰▰▰▱Corroborated
Caliber
Cal. 1575 — stated by seller; caseback not opened
CLM
▰▱▱▱Unverified
Dial
Later Rolex service dial — matte, minute-track & coronet font read as service-era
OBS
▰▰▱▱Indicative
Handset & lume
Hands appear relumed; dial plots read as aged tritium
OBSEXP
Conflicted
Bezel insert
Faded ‘Pepsi’ insert of a later generation than the case
OBS
▰▰▱▱Indicative
Bracelet
78360 folded-link with 501B end links; visible stretch
OBS
▰▰▰▱Corroborated
Box & papers
Not present — reported lost
GAP
Gap

Assay did not open the caseback or handle the watch. Identification rests on provided media and one service document; movement and internal parts are Unverified until inspection.

03

Evidence inventory

The spine of the dossier. Every finding above and every number below points back to a line here.

E1DOC
Seller photo 11 — 6 o’clock between-lug▰▰▰▰Established

Reference “1675” legible in the engraving between the lower lugs.

E2DOC
Seller photo 12 — 12 o’clock between-lug▰▰▰▱Corroborated

Serial reads 2.9xx xxx (final digits soft in the frame); consistent with c. 1971 production.

E3OBS
Seller photos 01–04 — dial & handset▰▰▱▱Indicative

Matte black dial. Minute-track spacing and coronet font read as a later Rolex service dial rather than a 1971 original. Hand lume is uniform and bright against markedly aged, cream-toned dial plots — an age mismatch consistent with a relume.

E4OBS
Seller photo 05 — bezel insert▰▰▱▱Indicative

Red/blue insert with even fade; font weight and the fount-well form suggest a later production insert, not one original to a 1971 case.

E5OBS
Seller photos 06–07 — bracelet & clasp▰▰▰▱Corroborated

78360 folded-link bracelet on 501B end links (period-correct type). Clasp stamped; noticeable stretch between links, consistent with honest wear.

E6OBS
Seller photo 08 — case profile▰▰▱▱Indicative

Lugs read full with bevels present; no obvious signs of heavy over-polishing in the available frames.

E7DOC
Service invoice — Uhrmacher Keller, 2019▰▰▰▱Corroborated

Independent service: clean, lubricate, new crystal and gaskets. A line item “Zifferblatt / Zeiger” (dial / hands) supports later intervention on exactly the components in question.

E8CLM
Seller listing text▰▱▱▱Unverified

Watch described as “all original, one owner from new, never polished.” Recorded as the counterparty’s assertion; it conflicts with E3 and E7.

E9DOC
2015 forum sale — screenshot▰▰▱▱Indicative

Prior public sale post supports a 2015 acquisition by the seller; does not establish the chain before that date.

E10CLM
Seller message — movement▰▱▱▱Unverified

States Cal. 1575, running well, +6 s/day. Not independently verified; caseback not opened.

E11GAP
Box & papersGap

Original guarantee, booklets and box reported lost. No punched papers to corroborate reference, date, or first dealer independently of the watch itself.

E12EXP
M. Faber — Assay vintage panel▰▰▱▱Indicative

On the media: presents as a genuine 1675 that has been serviced with a replacement dial and relumed hands — plausibly Rolex service parts, not a counterfeit redial. Originality-sensitive value cannot be settled without the watch in hand.

04

Inconsistencies & gaps

Surfaced, not smoothed over. These are the four things that move the decision.

CONFLICT
Originality vs. seller representation

The seller states “all original”; the media indicate a service dial and relumed hands. This is the single largest swing in value and the reason inspection is a condition, not a courtesy.

GAP
No papers or box

Reference, production date, and first sale cannot be corroborated independently of the watch. Common for vintage, but it removes a layer of cross-checking.

GAP
Movement unverified

Caseback not opened; caliber, service condition, and any replaced internal parts are unconfirmed from media alone.

CAUTION
Bezel insert generation

Insert appears later than the case. Low-cost to correct and immaterial to function, but it further contradicts the “all original” framing.

05

Condition & service scenarios

The watch is reported running, last serviced in 2019 (). Three paths, depending on how far you take originality:

As-is, no service
Runs per seller; last serviced 2019. Accept near-term service risk and monitor.
$0
Full service (independent)
Clean, lubricate, seals by a vintage specialist. No parts swaps required to wear it well.
$800 – $1,200
Originality-correct restoration
Source a period-correct dial and insert if pursuing original configuration. Parts are scarce and value-dependent.
$3,000 – $8,000+

Assay recommends carrying a $1,500 service reserve into the decision regardless of path.

06

Comparable price range

The ask of ≈ $20,100 sits at the top of the service-dial band and below the original-dial band — i.e. priced as if partly original. The three sets below are not interchangeable; which one applies depends on inspection.

1675 ‘Pepsi’ · service dial · no papers
Closest set to this watch · n≈6 tracked sales, 18 mo
$14,000 – $19,000
1675 ‘Pepsi’ · original dial · no papers
Originality premium · applies only if confirmed in hand
$22,000 – $30,000
1675 ‘Pepsi’ · original · full set
Papers & box · shown for context only
$30,000 – $42,000+
Fair remote value
$15,000 – $18,000
Suggested target
$17,000

Limitations: small heterogeneous sample (n≈6 close comps over 18 months), condition adjusted subjectively, private-sale prices under-reported. Treat as a band, not a price.

07

Counterparty & transaction risk

Signals, not a verdict on the person. Read them together, then decide the safeguards.

Private, cross-border sale
No marketplace buyer protection; recovery across borders is slow and uncertain.
Elevated
Payment method
Seller initially requested a bank wire. Escrow proposed and, per the last message, acceptable.
Manageable
Seller track record
Two prior forum sales, both with positive feedback (2018, 2021).
Reassuring
Timeline pressure
Seller notes “another buyer waiting.” Mild pressure — do not let it compress inspection.
Watch
08

Landed cost

Modelled at the suggested target price. Estimates; the duty line depends on the broker and declared value.

Purchase price (target) negotiated from $20,100 ask
$17,000
Insured shipping, DE → US courier, fully insured, signature
$260
US import duty est. 2.5% of declared value
$425
Third-party escrow fee on completed transfer
$300
Independent inspection Assay partner watchmaker, pre-release
$350
Service reserve recommended; not yet incurred
$1,000
Landed, ready to wear
At target
≈ $19,300
At full ask
≈ $22,400
09

Decision frame

All four options, stated plainly, with the condition that selects each. Assay's recommended path is marked.

ProceedConditional

Buy at or near the ask now. Not advised as-is — the ask is priced toward an originality the evidence does not yet support.

Selected when
Only after inspection confirms condition and the price reflects service-dial status.
NegotiateRecommended

Reprice to the service-dial, no-papers reality. Open ~$16,000, target ~$17,000, citing E3 / E7 / E12 and the comparable band.

Selected when
The seller engages on price, or provides proof of original configuration.
InspectRequired

Independent physical examination before any funds are released. Resolves the originality conflict and the movement gap that media cannot.

Selected when
Condition precedent to any purchase, at any price.
DeclineFallback

Walk away. Reasonable and low-regret if the safeguards are refused.

Selected when
The seller refuses escrow or inspection, or holds firm at the full ask.
Method & limitations · disclosures

Assay reviewed 14 photographs, one 2019 service invoice, and the seller's written representations. Assay did not physically examine the watch, open the caseback, or test the movement. Originality assessments from photographs are provisional and were reviewed by M. Faber, independent vintage-Rolex specialist on the Assay panel ().

Assay does not authenticate watches and issues no guarantee of authenticity. This dossier describes what the available evidence supports and where it is silent; it is decision support, not a certificate. Findings are current as of the preparation date and the media supplied. Independent physical inspection is a stated condition of the recommendation.

Assay · LUX-AD-2026-0417 · v1.2Prepared 18 July 2026 · Analyst A-07 · Reviewer M. Faber
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