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The Encyclopedia of Horology

Wristwatch · GMT-Master

Rolex GMT-Master Ref. 1675 'MK1 Long-E'

Partially verified

This Rolex GMT-Master, reference 1675, is dated by the vendor to circa 1969. The watch features a black 'MK1 Long-E' dial with applied hour markers containing Tritium plots that display a uniform patina. The dial is housed in a stainless steel case with crown guards and is topped by a bidirectional, bi-colored 'Pepsi' bezel insert in blue and red aluminum. Timekeeping functions include a standard three-hand display with a date complication under a cyclops lens, supplemented by a fourth hand for a 24-hour time zone display. The watch is presented on an Oyster bracelet equipped with a blade clasp. The vendor describes the case as thick and symmetrical, with the bezel showing light fading to the blue and red segments. The handset patina is reported to match the dial markers, and the overall condition is described by the vendor as fantastic.

Front-facing view of the Rolex GMT-Master Ref. 1675 with 'Pepsi' bezel and Oyster bracelet.
Front-facing view of the Rolex GMT-Master Ref. 1675 with 'Pepsi' bezel and Oyster bracelet. — Oliver & Clarke. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
oliverandclarke.com
Category
Wristwatch · GMT-Master
Maker / attribution
Rolex
Reference
1675
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
circa 1969
Source-reported place
Not established

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Bezel

The stainless steel case features crown-guards, a design element introduced for the reference 1675 model. According to the vendor, the case is thick and symmetrical, retaining an appearance described as strong despite displaying signs of honest wear throughout the exterior surfaces.

The watch is fitted with a bi-colored aluminum bezel insert in blue and red, commonly referred to as the 'Pepsi' bezel. This component exhibits a light fade to both the red and blue sections, with minor wear consistent with the watch's age.

Evidence for this section
  • “The case is strong — thick and symmetrical, and shows honest wear throughout.”
  • “And then, of course, there is that gorgeous 'Pepsi' bezel insert. It shows a light fade to both the blue and red halves, and only light wear.”

Dial and Hands

The watch features a matte black dial identified as the 'MK1 Long-E' variant. The dial is populated with Tritium plots that display a consistent light patina. The handset mirrors this aging, with the vendor stating that the patina of the hands matches the hour plots on the dial perfectly.

A date window is positioned at the 3 o'clock mark, viewed through a cyclops lens on the crystal. The dial markings include the Rolex crown logo, the model name, and the text denoting the Superlative Chronometer designation.

Evidence for this section
  • “The correct 'MK1 Long-E' dial inside is equally fantastic, with a seemingly flawless mate black surface and complete Tritium plots. They shows a light and uniform patina, which is matched perfectly in the handset.”

Provenance and Condition

The watch is described as being in fantastic overall condition for its age. It is accompanied by an Oyster bracelet with a blade clasp, which the vendor identifies as the correct bracelet for this specific reference.

No history of previous ownership or service records are provided in the source. All condition assessments are provided by the vendor, Oliver & Clarke.

Evidence for this section
  • “The example that we have here from circa 1969 comes to us in fantastic overall condition.”
  • “This piece comes fitted with its correct Oyster bracelet with a blade clasp.”

Open research questions

  • What is the specific serial number to confirm the 1969 production date?
  • Does the movement retain its original components given the reported condition of the dial and case?

Source evidence

Recorded claims and source quotations for Rolex GMT-Master Ref. 1675 'MK1 Long-E'
FieldSource-reported valueSource quotation
Reference1675“Reference 1675”
Dial typeMK1 Long-E“'MK1 Long-E' dial”
Estimated datecirca 1969“circa 1969”
Bezel materialAluminum“bezel insert made of aluminum”
Bracelet typeOyster“fitted with its correct Oyster bracelet”
Clasp typeBlade clasp“with a blade clasp”
Luminous materialTritium“complete Tritium plots”

Visible details

  • Bi-colored red and blue bezel insert with fading
  • Cyclops lens over the date window at the 3 o'clock position
  • Black dial with 'GMT-MASTER' and 'SUPERLATIVE CHRONOMETER OFFICIALLY CERTIFIED' text
  • Oyster bracelet with blade-style clasp

Research qualifications

  • Exact production year not verified by serial number
  • Patina uniformity and dial originality are described by the vendor without independent laboratory authentication

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی رولکس Rolex GMT-Master Ref. 1675 با صفحه MK1 Long-E

Reviewed 2026-11-02 · Record 99654bf235

Terms in this record

Glossary explanations for terms named in this object’s record.

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