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The Encyclopedia of Horology

Wristwatch · GMT-Master

Rolex GMT-Master Ref. 1675 Mk1 'Long E'

Partially verified

This vintage Rolex GMT-Master, reference 1675, is characterized by its matte black Mk1 'Long E' dial. According to the serial number, the watch dates to 1971. The 40 mm stainless steel case is described as having thick, uniform lugs. The dial features indices that have developed a vanilla-toned patina, and the insert of the bidirectional 24-hour bezel shows natural fading on the blue segment. The watch is fitted with a Jubilee bracelet (ref. 6251H) with folding links, 55 end-links, and a clasp stamped '2 71'. This example is accompanied by its original box, dual-punched papers showing a 1972 sale, a passport holder, and a 2010 Rolex boutique service invoice.

Front view of the Rolex GMT-Master reference 1675, showing the black 'Long E' matte dial, the faded blue and red 'Pepsi' bezel, and the Jubilee bracelet.
Front view of the Rolex GMT-Master reference 1675, showing the black 'Long E' matte dial, the faded blue and red 'Pepsi' bezel, and the Jubilee bracelet. — Bulang & Sons via Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · GMT-Master
Maker / attribution
Rolex
Reference
1675
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
1971
Source-reported place
Switzerland
Source-reported serial
285xxxx

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 Bracelet

According to the provided description, the lugs maintain significant thickness and a uniform profile, which is a noted aspect of its vintage preservation.

It is mounted on a stainless steel Jubilee bracelet featuring folding links, designated as reference 6251 (or 6251H). The bracelet utilizes reference 55 end-links to secure the connection to the case. The clasp is marked '2 71', consistent with the date of manufacture.

Evidence for this section
  • “بدنه ساعت از فولاد ضدزنگ با قطر ۴۰ میلی‌متر ساخته شده و طبق توصیفات دارای گوشواره‌های محکم و ضخیم با ضخامت یکنواخت است”
  • “بند فلزی ساعت مدل جوبیلی با حلقه‌های تاشده رفرنس 6251 (6251H) است که به اندلینک‌های رفرنس 55 مجهز شده و روی قفل آن علامت «2 71» ثبت شده است”

Dial and Bezel

The watch features a matte black dial identified as a 'Mk 1' variant, commonly known as the 'Long E' configuration due to the specific typeface design of the word 'Rolex'. The hour markers have aged to a distinct vanilla color.

The bezel insert is characterized by a matte finish. The blue portion of the insert exhibits visible natural fading and patina, consistent with its age.

Evidence for this section
  • “صفحه ساعت از نوع مات مشکی بوده و نشانگرهای ساعت به رنگ وانیلی تغییر رنگ داده‌اند”
  • “اینسرت بزل دور صفحه دارای جلوه‌ای مات بوده و در بخش آبی‌رنگ آن محو‌شدگی و پتینای طبیعی مشاهده می‌شود”
  • “تنوع صفحات مات در نسخه‌های وینتیج این رفرنس، از جمله ساختار فونت حرف E در نوشته رولکس، از مشخصه‌های بارز مورد توجه کلکسیونرها به شمار می‌رود”

Provenance and Service

This set is presented with extensive original documentation. This includes the inner box and the dual-punched certificate of authenticity, which records an initial sale in 1972. The set also includes a passport-style holder and a 2010 service invoice from a Rolex boutique.

The movement has undergone a full service by the dealer's watchmaker. The seller indicates that the dial remains in original condition.

Evidence for this section
  • “این مجموعه همراه با وسایل کامل شامل جعبه داخلی، مدارک اصالت سوراخ‌دار (پانچ دوگانه) با ثبت فروش در سال ۱۹۷۲، کیف پاسپورتی و همچنین فاکتور سرویس بوتیک رولکس مربوط به سال ۲۰۱۰ ارائه می‌شود”
  • “موتور آن توسط ساعت‌ساز مجموعه به طور کامل سرویس شده است؛ همچنین ضمانت فنی یک‌ساله برای آن ارائه می‌گردد”

Open research questions

  • Which specific caliber movement is installed within this serial range for the ref. 1675?
  • What is the specific maintenance history of the movement prior to the 2010 service invoice?

Source evidence

Recorded claims and source quotations for Rolex GMT-Master Ref. 1675 Mk1 'Long E'
FieldSource-reported valueSource quotation
Reference1675“رفرنس 1675”
Year of production1971“تاریخ ساخت ساعت به سال ۱۹۷۱ نسبت داده شده است”
Case materialStainless steel“فولاد ضدزنگ”
Bracelet reference6251“رفرنس 6251”
End-link reference55“اندلینک‌های رفرنس 55”
Clasp marking2 71“روی قفل آن علامت «2 71» ثبت شده است”

Visible details

  • Matte black dial with vanilla-toned hour markers
  • Bidirectional bezel with natural patina on blue segment
  • Jubilee bracelet with folding links (ref. 6251H)
  • Cyclops lens over the date display

Research qualifications

  • Exact caliber of the movement is not specified in the source
  • Current water resistance capability is not stated

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

Consulted source

ساعت مچی Rolex GMT-Master رفرنس 1675 مدل Mk1 Long E همراه با جعبه و مدارک

Reviewed 2026-11-02 · Record 0bfbe51b24

Terms in this record

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

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