OMEGA Speedmaster Reference 105.003 Chronograph Wristwatch
Record status
Individual type · partial
Period
1969
Maker / issuer
OmegaThis OMEGA Speedmaster, reference ST105.003, is a manual-wind chronograph wristwatch produced in 1969. Part of the fourth generation of pre-professional Speedmaster models, it is constructed from stainless steel and measures 42mm.
The watch is powered by the Calibre 321 manual movement. It features a black matte dial with luminous baton indexes, outer minute and seconds divisions, and an outermost 1/5 second scale. Complications include subsidiary seconds at 9 o'clock, a 30-minute register at 3 o'clock, and a 12-hour register at 6 o'clock, all operated by luminous baton hands and an arrowhead center chronograph hand. The stainless steel case includes a tachymeter bezel and lacks crown guards.
The case back is engraved with a hippocampus emblem. The watch is presented on a leather strap.
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
- Type
- Chronograph wristwatch
- Calibre
- 321
- Reference
- ST105.003
- Case material
- Stainless steel
- Movement type
- Manual
- Case dimensions
- 42mm
- Year of production
- 1969
- Maker / attribution
- OMEGA
Design
- Case and Bezel
- The timepiece features a 42mm stainless steel case. The fixed bezel is fitted with a tachymeter scale insert. The case back displays an engraved hippocampus logo. According to the provided information, the case back may also feature 'C.H.' initials in a cursive font, though these are not clearly legible in the current images.
- Visible features
- • Luminous material applied to dial indexes and hands • Tachymeter scale printed on the black bezel insert • Engraved hippocampus emblem on the stainless steel case back • Three-register chronograph layout
- Historical Context
- The reference 105.003 was introduced in 1963. It was selected by NASA in 1965 following testing protocols for official supplier status for astronauts. An example of this reference was worn by astronaut Ed White during a 1965 spacewalk. Production of the 105.003 continued until 1969, at which point it was superseded by asymmetric-cased references such as the ST105.012 and ST145.012.
- Dial and Complications
- The watch features a matte black dial. Hour markers consist of luminous painted baton indexes. The outer periphery includes minute and seconds divisions, with an outermost 1/5 second scale for precise timing. Sub-dials are arranged for subsidiary seconds at 9 o'clock, a 30-minute recorder at 3 o'clock, and a 12-hour recorder at 6 o'clock. The time is displayed via luminous baton hands, while the chronograph function utilizes an arrowhead center hand.
Identification
- Reference
- ST105.003
- 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: Source notes engraving on the case back, though it is not distinctly visible in the provided photos
- Research required: The leather strap is a replacement and not part of original manufacture