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

Reference 123.25.31.20.55.002

About this watch

The Omega Constellation Co-Axial 31 is a stunning luxury watch that embodies elegance and sophistication. This exquisite timepiece boasts a round case crafted from a luxurious blend of stainless steel and yellow gold, featuring a delicate mother-of-pearl (MOP) dial adorned with diamond indexes. The heart of the Omega Constellation is the Omega caliber 8520, an automatic movement certified for its precision and durability. With a water resistance of 100 meters, this watch can handle everyday practicality and special occasion elegance alike. Its versatility makes it perfect for collectors looking for something unique and stunning, as well as anyone wanting to make a statement with their wristwear. The Omega Constellation Co-Axial 31 is more than just a watch; it’s a statement of artistry and precision. This timepiece has everything a luxury watch enthusiast could desire, from its stunning design to its reliable movement.
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Key Features

  • Omega caliber 8520 automatic movement
  • Delicate mother-of-pearl (MOP) dial with diamond indexes
  • Luxurious stainless steel and yellow gold case
  • Water resistance of 100 meters
  • Co-Axial escapement for durability and accuracy
  • Chronometer certified for precision
  • 50-hour power reserve

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Yellow Gold / Diamond / MOP Supernova
Reference
123.25.31.20.55.002
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Case size: 36mm
  • Crystal type: sapphire crystal
  • Bracelet length: up to 7.25 inches
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  • Case Size: 41mm diameter
  • Movement Type: Coaxial Automatic
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Dec 19, 2025, 2:07 PM
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[WTS] Omega Constellation C Case 168.017 Cal 564, Serviced - $790

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  • Condition: Good condition with some signs of aging
  • Case Size: 35-36mm
  • Bezel Condition: High polished with light hairlines
  • Caseback Condition: Polished by previous owner
Posted at
Dec 18, 2025, 8:42 PM
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The Omega Constellation 196.0071 is being sold, with the seller offering FaceTime or other verification methods.

  • Verification method: FaceTime / other
Posted at
Dec 18, 2025, 1:07 PM
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[WTS] Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

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This is a rare 1960s Omega Constellation in 18K rose gold with a silver pie-pan dial. The watch has a unique character and classic proportions, suitable for both men and women.

  • Condition: Beautiful condition with strong, well-defined edges and an exceptionally clean period-correct pie-pan silver dial.
  • Case Size: 34mm
  • Year: 1960s
  • Material: 18K rose gold
Posted at
Dec 17, 2025, 5:47 PM
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[WTS] Omega Constellation Globemaster – New – 2025

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The Omega Constellation Globemaster features a modern design with a coin-edge bezel and classic pie-pan dial inspired by original Constellation models of the 1950s, powered by Omega's Co-Axial Master Chronometer Caliber 8900.

  • Condition: Unworn/New
  • Case size: 39mm
  • Material: stainless steel
  • Diameter: 39mm
Posted at
Dec 16, 2025, 12:54 PM
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  • Condition: Great condition with minor signs of wear
  • Case diameter: 35mm (without crown)
  • Lug to lug: 38mm
  • Lug width: 23mm
Posted at
Dec 14, 2025, 9:08 PM
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Omega Constellation Globemaster Master Chronometer

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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