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The Encyclopedia of Horology

Wristwatch · Chronograph wristwatch

Omega Seamaster 'Flat Jedi' Chronograph Wristwatch

Partially verified

This stainless steel Omega Seamaster chronograph, reference 145.024, dates from 1971. Known colloquially as the 'Flat Jedi', the watch features a 40mm stainless steel case and is paired with a matching stainless steel bracelet. The chronograph is powered by the manual-winding Omega caliber 861 movement. The black dial is configured with baton-style indices featuring luminous points, white baton-style hour and minute hands with luminous inserts, and a prominent central orange chronograph hand. The dial perimeter displays a racing-style minute track and a white printed tachymeter scale ranging from 60 to 500 units per hour. The watch is accompanied by an 'Extract from the Archives'. This model line was developed for motorsport applications and remained in production until 1973.

Front view of the Omega Seamaster 'Flat Jedi' chronograph showing the black dial, tachymeter scale, and orange central seconds hand.
Front view of the Omega Seamaster 'Flat Jedi' chronograph showing the black dial, tachymeter scale, and orange central seconds hand. — Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Chronograph wristwatch
Maker / attribution
OMEGA
Reference
145.024
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
1971
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 40mm stainless steel case characterized by a brushed finish. It is equipped with a dedicated stainless steel bracelet.

The dial is black, featuring silver-colored baton indices with luminous points. The time is displayed via white baton-style hands that also contain luminous material. A distinct feature is the central chronograph seconds hand finished in orange, designed for legibility against the dial. The outer edge of the dial includes a racing-style minute track and a printed tachymeter scale calibrated from 60 to 500.

Evidence for this section
  • “بدنه این ساعت طبق مشخصات ارائه‌شده از جنس فولاد ضد زنگ با قطر ۴۰ میلی‌متر ساخته شده”
  • “صفحه ساعت به رنگ مشکی با نشانگرهای ساعتی نقره‌ای‌رنگ متصل (baton) مزین به نقاط شب‌نما طراحی شده است.”
  • “عقربه کرونوگراف مرکزی نارنجی‌رنگ است.”

Movement and Functionality

The timepiece operates on a manual-winding mechanism designated as the caliber 861. The caliber 861 is a known manual movement utilized by the manufacturer during this period for its timing capabilities.

The chronograph complication allows for the measurement of speed and time intervals, which the source notes was intended for drivers and motorsport enthusiasts. The watch remained in the manufacturer's production lineup until 1973.

Evidence for this section
  • “نیروی محرکه ساعت توسط کالیبر دستی 861 (Manual) تأمین می‌شود”
  • “ساعت دارای پیچیدگی کارکردی کرونوگراف است.”

Provenance and Documentation

The auction description reports that the object is accompanied by an 'Extract from the Archives'. This document serves to verify the specific record for this watch within the manufacturer's historical archives.

The model is widely referred to by collectors and in the listing as the 'Flat Jedi'. While this moniker is used to identify this specific Seamaster reference, it is distinct from the official model name assigned by the manufacturer.

Evidence for this section
  • “از اقلام همراه ذکرشده برای این قطعه، سند عصاره بایگانی (Extract from the Archives) است.”
  • “این سری که با عنوان «Flat Jedi» نیز شناخته می‌شود”

Open research questions

  • Is the 'Extract from the Archives' date of issuance available?
  • Does the serial number on the movement correspond to the 1971 production year?

Source evidence

Recorded claims and source quotations for Omega Seamaster 'Flat Jedi' Chronograph Wristwatch
FieldSource-reported valueSource quotation
MakerOMEGA“سازنده: OMEGA”
ModelSeamaster ('Flat Jedi')“مدل: Seamaster ('Flat Jedi')”
Reference145.024“شماره مرجع (Reference): 145.024”
Year of manufacture1971“سال ساخت: ۱۹۷۱”
MovementManual-winding caliber 861“نیروی محرکه ساعت توسط کالیبر دستی 861 (Manual) تأمین می‌شود”
Case materialStainless steel“بدنه این ساعت طبق مشخصات ارائه‌شده از جنس فولاد ضد زنگ با قطر ۴۰ میلی‌متر ساخته شده”
Dial detailsBlack dial with tachymeter scale“صفحه ساعت به رنگ مشکی با نشانگرهای ساعتی نقره‌ای‌رنگ متصل (baton) مزین به نقاط شب‌نما طراحی شده است. همچنین طبق اعلام منبع، صفحه شامل تقسیمات دقیقه‌ای حاشیه‌ای مسابقه‌ای (racing)، مقیاس تاکیمتر چاپی سفید”
Included itemsExtract from the Archives“از اقلام همراه ذکرشده برای این قطعه، سند عصاره بایگانی (Extract from the Archives) است.”

Visible details

  • Case diameter of 40mm
  • Orange central chronograph hand
  • Tachymeter scale printed on dial perimeter
  • Integrated steel link bracelet

Research qualifications

  • 'Flat Jedi' is a nickname rather than an official factory designation
  • The source does not confirm the original production country

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

Consulted source

Stainless steel OMEGA Seamaster 'Flat jedi' chronograph wristwatch. Made 1971

Reviewed 2026-11-02 · Record 30e04eeb3f

Terms in this record

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

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