Omega Speedmaster Professional Ref. 105.012 Chronograph Wristwatch
Record status
Individual type · partial
Period
1967
Maker / issuer
OmegaThis 1967 Omega Speedmaster Professional reference 105.012 is a manual-wind chronograph wristwatch. The watch features a 42 mm stainless steel case with the characteristic asymmetrical design intended to protect the crown and pushers.
The matte black dial is equipped with baton indices featuring luminescent material, an external minute and second track, and an outermost 1/5 second graduation. Sub-dials include a continuous seconds register at the 9 o'clock position, a 30-minute recorder at 3 o'clock, and a 12-hour counter at 6 o'clock. The time and chronograph functions are displayed via luminescent baton hands and a central sweep seconds chronograph hand with a pointed tip.
The bezel carries a tachymeter scale. Internally, the watch is powered by the manual-wind caliber 321 movement. It is offered with an extract from the archives and is mounted 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
- Movement
- Caliber 321, manual-wind
- Reference
- 105.012
- Accessories
- Extract from the archives
- Case Diameter
- 42 mm
- Case Material
- Stainless steel
- Maker / attribution
- OMEGA
- Year of Manufacture
- 1967
Design
- Case and Dial
- The watch features a stainless steel case measuring 42 mm in diameter. The design is noted for its asymmetrical configuration, which was introduced to provide protective guards for the crown and pushers. The case is fitted with a bezel engraved with a tachymeter scale, used for calculating speed and time intervals. The dial is finished in matte black and displays luminous baton indices. It is organized with a central hour and minute display, supplemented by three sub-dials: a 30-minute counter at the 3 o'clock position, a 12-hour register at 6 o'clock, and a sub-seconds display at 9 o'clock. The dial periphery contains both minute and second divisions, with an outer track calibrated to 1/5 of a second. Hands are baton-style with luminescent inserts.
- Visible features
- • Asymmetrical case design protecting the crown and pushers • Tachymeter bezel with 500-unit scale • Matte black dial with three sub-registers • Luminescent baton hands and indices
- Documentation and Provenance
- The watch is documented as having been manufactured in 1967. The listing includes an extract from the archives, which serves as official documentation from the manufacturer regarding the production year and model details. The provided information indicates that the piece is paired with a leather strap. The object is presented as part of the Speedmaster Professional series, identified by the reference number 105.012.
- Movement and Technical Features
- The watch is operated by a manual-wind movement, specifically the Omega caliber 321. This movement powers the chronograph functions, allowing for the timing of events alongside standard timekeeping. The chronograph system is operated via the crown and pushers, with a central sweep hand indicating chronograph seconds. The tachymeter bezel acts as a computational tool for measuring velocity based on time intervals, a standard functional component for this model reference.
Identification
- Reference
- 105.012
- 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 specific serial number is not provided in the source text
- Research required: The exact provenance beyond the archive extract is not specified