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The Encyclopedia of Horology

Wristwatch · Manual-wind wristwatch

Omega Railmaster reference 135.004-63 wristwatch

Partially verified

This Omega wristwatch, referenced 135.004-63, was manufactured in 1964. The timepiece features a 38 mm stainless steel case and is reported to have been produced for the Pakistan Air Force. It is powered by a manual-wind Calibre 286 movement. The black dial, which bears the name 'Seamaster' rather than 'Railmaster', is characterized by luminous baton-style indices, a peripheral minute track, and broad arrow hands with a central seconds hand. It is presented on a leather strap. The object is a version of the Railmaster line that incorporates Seamaster branding on the dial, a variation attributed by the source to regional historical contexts related to colonial-era railway associations.

Front view of the Omega Railmaster reference 135.004-63 with 'Seamaster' dial branding.
Front view of the Omega Railmaster reference 135.004-63 with 'Seamaster' dial branding. — Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Manual-wind wristwatch
Maker / attribution
OMEGA
Reference
135.004-63
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
1964
Source-reported place
Switzerland

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 Dial Design

The watch is housed in a 38 mm stainless steel case, designed to accommodate a manually wound movement. The dial is black and features a peripheral minute track. The indices are designed in a baton style and include luminous material, complemented by broad arrow hands and a central seconds hand.

According to the source documentation, the dial bears the inscription 'Seamaster' instead of 'Railmaster'. The source attributes this variation to the historical context of the British influence on the regional railway network, suggesting that the branding was adjusted to avoid associations with colonial-era railway nomenclature.

Evidence for this section
  • “قاب این ساعت از جنس فولاد ضدزنگ با قطر ۳۸ میلی‌متر بوده”
  • “به دلیل سابقه حضور بریتانیا در شبکه راه‌آهن منطقه و پیوند نام راه‌آهن با دوران استعمار، بر روی صفحه این نسخه به جای عبارت 'Railmaster' نام 'Seamaster' درج شده است.”

Movement and Functionality

The timepiece is powered by an Omega Calibre 286, which is a manual-wind movement. The design of this model incorporates technical specifications intended to provide resistance against magnetic fields.

This anti-magnetic capability was intended for use by specialized professionals during the mid-20th century, including military personnel, technicians, and scientists.

Evidence for this section
  • “مجهز به موتور کوکی دستی با کالیبر 286 بوده”
  • “دارای ویژگی مقاومت در برابر میدان‌های مغناطیسی (Anti-magnetic) است.”

Provenance and Production

The watch was produced in 1964. The source identifies the production as a specific commission created for the Pakistan Air Force.

The identification of this watch as a Railmaster variant is based on the reference number 135.004-63. It is presented as an example of specific military procurement within the Omega archives for that period.

Evidence for this section
  • “این ساعت مچی OMEGA مدل Railmaster با رفرنس 135.004 در سال ۱۹۶۴ (اواسط دهه ۱۹۶۰ میلادی) برای نیروی هوایی پاکستان ساخته شده است.”

Open research questions

  • What is the specific movement serial number range for the 1964 Pakistan Air Force commission?
  • Does archival evidence confirm the 'Seamaster' dial printing as a standard variation for this regional supply contract?

Source evidence

Recorded claims and source quotations for Omega Railmaster reference 135.004-63 wristwatch
FieldSource-reported valueSource quotation
Reference135.004-63“135.004-63”
Case materialStainless steel“فولاد ضدزنگ”
Case diameter38 mm“قطر ۳۸ میلی‌متر”
Movement caliber286“کالیبر 286”
Winding mechanismManual“کوکی دستی”
Anti-magnetic propertyYes“دارای ویژگی مقاومت در برابر میدان‌های مغناطیسی (Anti-magnetic) است.”

Visible details

  • Broad arrow hands with luminous material
  • Black dial with applied luminous baton hour markers
  • Signed crown with Omega logo
  • 38 mm stainless steel case with integrated lugs

Research qualifications

  • Dial branding of 'Seamaster' on a Railmaster reference is source-attributed to historical associations
  • Production specifically for the Pakistan Air Force is stated by the source

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

Consulted source

Stainless steel OMEGA ref. 135.004-63 Railmaster wristwatch made for Pakistan Air force. Made 1964

Reviewed 2026-11-02 · Record 34f17a8cc9

Terms in this record

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

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