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The Encyclopedia of Horology

Wristwatch · Triple calendar moon-phase wristwatch

Omega Cosmic Ref. 2606-8 Triple Calendar Moon-Phase

Partially verified

This mid-century Omega Cosmic reference 2606-8 wristwatch features a two-tone construction comprising a 14k rose gold-plated bezel and lugs paired with a stainless steel case measuring 35 mm in diameter. Its silvered dial is configured for the Iranian market, displaying Eastern Arabic hour markers, a peripheral blue date ring indicated by a central blue hand, and Persian calendar discs for the day and month apertures. The bottom subdial integrates running seconds with a moon-phase complication. Powering the watch is the manual-winding Omega calibre 381 movement. According to an accompanying archive extract, the watch was produced on September 24, 1954, and subsequently delivered to Iran.

Oblique view of the Omega Cosmic ref. 2606-8 dial and two-tone case on a leather strap
Oblique view of the Omega Cosmic ref. 2606-8 dial and two-tone case on a leather strap — Christie's. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
onlineonly.christies.com
Category
Wristwatch · Triple calendar moon-phase wristwatch
Maker / attribution
Omega
Reference
2606-8
Catalogue / lot identifier
63
Source-reported date
1954
Country
Switzerland
Source-reported serial
12’878’951

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

Construction and Case Specifications

This timepiece features a two-tone construction measuring 35 mm in diameter, comprising a 14k rose gold-plated bezel and lugs with a stainless steel case. The dial features rose gold-toned leaf-shaped hands.

According to the condition report, the case has been refreshed and the caseback polished, though the piece is reported to retain its proportions.

Evidence for this section
  • “CASE MATERIAL: 14k rose gold-plated and stainless steel”
  • “DIAMETER: 35 mm.”
  • “CASE: The case has been refreshed but retains its proportions, caseback has been polished”
  • “The rose gold leaf-shaped hands echo the same colour tones of the bezel and lugs.”

Dial Configuration

The silvered dial features Eastern Arabic numeral hour markers and calendar indications in the Persian language. A peripheral blue date ring is present, paired with a central blue date hand.

Calendar apertures for the day and month are positioned above the center arbor, while the 6 o'clock subdial displays the moon-phase.

Evidence for this section
  • “Silvered with leaf-shaped hands, moon-phase and calendar indications in Persian”
  • “the present watch is among the rare examples featuring eastern Arabic numerals and calendar indications in the Persian language.”
  • “The silvered dial has an outer date ring in the same blue as the central date hand.”

Movement and Provenance

The watch is powered by a manual-winding Omega Calibre 381. An accompanying extract from the Omega archives confirms a production date of September 24, 1954, and subsequent delivery to Iran.

The movement is noted as functional and ticking, though the source recommends a service.

Evidence for this section
  • “MOVEMENT: Cal. 381, manual-winding.”
  • “Omega Extract from the Archives confirming production of the present watch on September 24, 1954 and its subsequent delivery to Iran.”
  • “MOVEMENT: The movement is ticking and all the functions are working, however we recommend a service after the sale”

Open research questions

  • Does the 'refreshed' case condition impact the original factory geometry of the lugs?
  • Do records exist confirming the specific volume of 2606-8 references produced for the Iranian market?
  • Do the functional complications meet current factory-era calibration standards?

Source evidence

Recorded claims and source quotations for Omega Cosmic Ref. 2606-8 Triple Calendar Moon-Phase
FieldSource-reported valueSource quotation
Reference2606-8“OMEGA, COSMIC REF. 2606-8”
Movement Number12’878’951“MOVEMENT NUMBER: 12’878’951”
Case Material14k rose gold-plated and stainless steel“CASE MATERIAL: 14k rose gold-plated and stainless steel”
Diameter35 mm“DIAMETER: 35 mm.”
CalibreCal. 381“MOVEMENT: Cal. 381, manual-winding.”
Production DateSeptember 24, 1954“production of the present watch on September 24, 1954 and its subsequent delivery to Iran.”
Movement Number12’878’951“MOVEMENT NUMBER: 12’878’951”

Visible details

  • Silvered dial with Eastern Arabic numeral hour markers and blue painted date ring
  • Rose gold leaf-shaped hour and minute hands paired with a blued steel date pointer
  • Dual calendar apertures positioned above the centre arbor and a combined subdial with moon-phase disc at 6 o'clock
  • Two-tone case design with rose-gold-toned bezel and curved lugs contrasting with the steel case flank

Research qualifications

  • The displayed alligator strap is for exhibition only and is replaced upon sale
  • Movement and caseback interiors are not shown in the provided photograph

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

Consulted source

OMEGA, COSMIC REF. 2606-8, A TWO TONE TRIPLE CALENDAR MOON-PHASE MADE FOR IRAN, MOVEMENT NUMBER: 12’878’951 | Christie’s

Reviewed 2026-10-25 · Record db075a84b9

Terms in this record

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