Omega Constellation Constellation Co-Axial 31 Yellow Gold / Diamond / MOP Supernova

Reference 123.55.31.20.55.002

About this watch

The Omega Constellation Co-Axial 31 Yellow Gold / Diamond / MOP Supernova is a masterpiece that embodies Omega's legacy of precision and luxury. This exquisite timepiece radiates luxury with its yellow gold case, diamond-set bezel, and mother-of-pearl dial. The watch features the revolutionary Co-Axial Escapement movement, ensuring incredible accuracy and stability. With a water resistance of up to 100 meters, this timepiece is perfect for daily wear. Its elegant design and premium materials make it a versatile addition to any wardrobe. Whether you're looking to elevate your everyday style or make a statement at special occasions, the Omega Constellation Co-Axial 31 Yellow Gold / Diamond / MOP Supernova is an ideal choice.
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Key Features

  • Omega caliber 8521 movement with Co-Axial Escapement
  • Water resistance up to 100 meters
  • 18-karat yellow gold case and diamond-set bezel
  • Mother-of-pearl dial with gem-set indexes
  • Dauphine hands for precision timekeeping
  • Chronometer certification for accuracy and reliability
  • 50-hour power reserve for continuous wear

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Yellow Gold / Diamond / MOP Supernova
Reference
123.55.31.20.55.002
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation. Double Eagle. $1350 only !!

Omega Constellation. Double Eagle. $1350 only !!

A Omega Constellation Double Eagle, in good condition, suitable for everyday use.

  • Condition: Good daily wear
  • Lume quality: nice
  • Case size: 38/39mm
  • Shipping method: Fedex with insurance
Posted at
Mar 30, 2026, 6:30 PM
Active
[WTS] 1959 Omega Constellation ref. 14393 gold capped w/ Cal. 561 – crosshair dial – $1575 shipped

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1959 Omega Constellation ref. 14393 with chronometer-grade Cal. 561 automatic movement, clean original sunburst crosshair dial, and a very honest overall presentation.

  • Condition: Excellent with honest presentation
  • Movement: Cal. 561 automatic movement
  • Dial: Original sunburst crosshair dial
  • Service: Freshly serviced in March 2026
Posted at
Mar 30, 2026, 12:58 PM
Active
[WTS] Omega Constellation 1542.30

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A pre-owned Omega Constellation 1542.30 in great shape with all functions working correctly, featuring a clear crystal and a well-maintained bracelet.

  • Condition: great shape with minor scuffing on the bracelet
  • Crystal clarity: clear
  • Bracelet stretch: little to no stretch
Posted at
Mar 30, 2026, 10:08 AM
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[WTS] Omega Constellation Day-Date Ref. 396.1080 Two-Tone

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The Manhattan-era Constellation is a cleaner quartz watch design from the late 1980s, featuring a steel case, 18k yellow gold bezel, black Roman numerals, gold-accented integrated bracelet, and a white dial showing day and date via two independent subdials.

  • Condition: Good with expected light wear to the bracelet and case
  • Case Diameter: 33mm
  • Bezel Material: 18k yellow gold
  • Crystal Type: Sapphire
Posted at
Mar 29, 2026, 3:25 PM
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[WTS] Omega Constellation 168.027 1968 "Linen dial" with white gold bezel

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  • Condition: 7.5/10
  • Movement: caliber 564
  • Case condition: slight marks on the dial visible under strong artificial light
Posted at
Mar 29, 2026, 12:57 PM
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[WTS] 1959 Omega Constellation patina Pie Pan dial ref. 14381 with original bracelet!! Serviced!! - $1890 shipped!

1959 Omega Constellation patina Pie Pan dial ref. 14381 with original bracelet!! Serviced!! - $1890 shipped!

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This vintage Omega Constellation Pie Pan automatic watch features a beautiful patina dial, rose gold hands and indices, and an original stainless steel case with genuine Omega bracelet. The watch has been serviced and keeps good time.

  • Condition: 9/10
  • Case size: 34.5mm
  • Movement caliber: 551
  • Bracelet type: Original Omega bracelet
Posted at
Mar 29, 2026, 10:57 AM
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[WTS] Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1300 SHIPPED

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This Omega Constellation Pie Pan watch is a stunning and elegant example of Omega's dress watch heritage. The watch has an original, untouched dial and features a two-tone variant with solid yellow gold bezel and medallion. The case is made of steel.

  • Condition: Pre-owned, serviced a few years back
  • Case material: Steel, two tone (gold capped lugs)
  • Diameter: 35mm
  • Lug width: 18mm
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Mar 27, 2026, 4:27 PM
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  • Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
  • Case dimensions: 39mm x 46.7mm lug to lug x 12.6mm thick
  • Bracelet type: 3-row with slightly curved central links
Posted at
Mar 31, 2025, 10:32 AM
Active