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Omega Speedmaster Ref. ST 105.002-62 Chronograph

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1963

Maker / issuer

Omega

This Omega Speedmaster wristwatch, identified by reference ST 105.002-62 and movement number 19583904, dates to 1963. The timepiece features a three-body stainless steel case with polished and brushed surfaces, lapidated lugs, and a screwed-down case back adorned with an engraved Speedmaster logo.

It includes an antimagnetic dust cap and a black bezel calibrated with a tachometer graduation to 500 UPH. The black dial exhibits luminous baton indexes, a luminous alpha-style steel hand set, and three subsidiary registers for seconds, 30-minute, and 12-hour tracking. Internally, the watch is powered by the copper-colored Omega caliber 321 manual-wind movement. This 17-jewel chronograph movement utilizes a straight-line lever escapement, a monometallic balance, a shock absorber, and a flat balance spring with an index regulator.

The watch is accompanied by an Omega link bracelet, a fitted box, and a spare JB bracelet.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Date
1963
Type
Chronograph wristwatch
Reference
ST 105.002-62
Dimensions
39 mm diameter, 14 mm thickness
Auction Grade
Grade AA
Case Features
Three-body, polished and brushed, screwed-down case back with engraved Speedmaster logo
Movement Number
19583904
Movement Caliber
Cal. 321
Maker / attribution
Omega

Design

Visible features
• Tachymeter bezel calibrated to 500 units per hour • Three-body case construction with lapidated lugs • Black chronograph dial with three subsidiary registers • Visible discoloration on the dial surface
Case and Dial Details
The watch is housed in a three-body stainless steel case measuring 39 mm in diameter and 14 mm in thickness. The exterior finishes consist of a combination of polished and brushed surfaces, complemented by distinctive lapidated lugs. The case back is secured by screws and features an engraved Speedmaster logo. Inside, an antimagnetic dust cap protects the movement from external interference. The black dial is fitted with luminous baton-style indices and an outer minute and 1/5th second track. The time and chronograph functions are displayed via luminous steel alpha-shaped hands. Subsidiary dials are arranged to display constant seconds, 30-minute, and 12-hour intervals. The black external bezel features a tachymeter scale graduated up to 500 units per hour.
Movement Construction
The movement powering this chronograph is the Omega caliber 321, a manual-wind mechanism characterized by its copper-colored finish. It operates with 17 jewels and incorporates a classic straight-line lever escapement. Technical features of the caliber include a monometallic balance equipped with a shock absorber system. The balance assembly utilizes a self-compensating flat balance spring managed by a traditional index regulator. The movement, along with the case and dial, bears the maker's signature.
Condition and Accessories
The auction description provides a grading assessment for the watch, assigning a general grade of AA. The individual components are assessed as follows: the case is graded as 3, the movement as 3*, and the dial as 3-12-01. The report notes that the hands are original to the watch, though the dial is described as having a tropical appearance. The lot is sold with several accompanying items, including a fitted box, a Certificate of Authenticity, and an additional spare JB bracelet.

Identification

Reference
ST 105.002-62
Serial number
19583904
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: The dial is described as having a 'Tropical' appearance, suggesting color shift
  • Research required: The auction description reports the need for an overhaul
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