Omega Cosmic Calendar Wristwatch
Record status
Individual type · partial
Period
1948
Maker / issuer
OmegaThis vintage Omega Cosmic wristwatch, reference OT 2473, was produced on July 8, 1948, and subsequently delivered to Switzerland. Housed in a 34 mm 18-karat gold case, the watch features a manual-winding movement, specifically the calibre 27 DL PC, identified by movement number 10933104.
The watch includes a calendar complication displaying the day, date, and month, alongside a moon phase indicator. The dial is described as having a gilt finish with applied indices, alpha gold hands, and a blue date pointer. The watch is accompanied by an extract from the archives, an original box, and an original clasp. The auction description notes the case includes a push-back mechanism and is finished with rounded lugs.
The watch is currently fitted with a leather strap. The condition is described by the auction house as very good, noting slight wear to the case and oxidation on the dial.
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
- Calendar wristwatch
- Maker
- Omega
- Reference
- OT 2473
- Case Serial
- 10801564
- Case Material
- 18 K gold
- Place recorded
- Switzerland
- Movement Serial
- 10933104
- Production Date
- July 8, 1948
- Movement Caliber
- 27 DL PC
- Maker / attribution
- Omega
Design
- Visible features
- • Blue pointer hand for calendar date • German language day and month windows • Moon phase display at the 6 o'clock position • Rounded lugs integrated into the gold case
- Case and Dial Design
- The watch is housed in an 18-karat gold case measuring 34 mm in diameter. It features a chamfered bezel and rounded, integrated lugs. The case back is designed as a push-back closure. The auction house reports the case is in very good condition with slight wear. The dial displays a gilt finish with applied indices and gold alpha hands. It integrates multiple complications, including day, month, and date indicators, and a moon phase display at the 6 o'clock position. The day and month are displayed via windows in German, while the date is indicated by a blue pointer. The auction description notes the dial has developed an even patina.
- Movement and Functionality
- The Omega Cosmic is powered by a manual-winding movement, recorded as calibre 27 DL PC, which was superseded by calibre 381 after 1949. The movement is identified by the serial number 10933104. The auction house lists the movement's condition as very good and states it is capable of running, although they recommend a professional cleaning. The complexity of the movement allows for the simultaneous display of calendar functions and moon phase tracking.
- Provenance and Documentation
- The watch is accompanied by an extract from the Omega archives, which confirms its production date of July 8, 1948, and its destination market of Switzerland. Included in the lot are the original box and the original clasp. The auction house notes that the gold hallmarks on the case are clearly visible, confirming the material composition.
Identification
- Reference
- OT 2473
- Serial number
- 10801564
- 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 auction description states the movement is 'capable of running' but recommends cleaning.
- Research required: The dial shows signs of oxidation and even patina, which is common for watches of this age.