Omega Constellation Constellation Co-Axial 31 White Gold / Snow / Diamond Supernova

Reference 123.55.31.20.55.011

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece of horological craftsmanship, boasting a stunning Snow and Diamond Supernova dial set in a 31.00 mm round white gold case with a gem-set bezel. The mother of pearl dial is adorned with diamond indexes that catch the light beautifully. Equipped with the Omega caliber 8421 movement, this watch offers greater precision and stability thanks to its Co-Axial escapement. With a 50-hour power reserve and water resistance up to 100 meters, it's built to withstand daily wear and tear. The dauphine hands glide effortlessly over the mother of pearl dial, providing excellent readability against the shimmering background. This timepiece is perfect for those who appreciate luxury, style, and performance. It's a testament to Omega's legacy of excellence, embodying what it means to be a high-end timepiece. With its combination of style, craftsmanship, and innovative technology, it stands out in the luxury segment.
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Key Features

  • Co-Axial Escapement for increased precision and stability
  • Self-winding movement with 50-hour power reserve
  • Water resistance up to 100 meters
  • White gold case with gem-set bezel
  • Mother of pearl dial with diamond indexes
  • 18 Ct red gold oscillating mass and balance bridge
  • Exclusive Geneva waves in arabesque finishing

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 White Gold / Snow / Diamond Supernova
Reference
123.55.31.20.55.011
Movement
8421
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
White Gold 31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Condition: pre-owned
  • Diameter: 35mm
  • Lug width: 18mm
  • Strap material: red leather
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  • Condition: Good daily wear
  • Lume quality: nice
  • Case size: 38/39mm
  • Shipping method: Fedex with insurance
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  • Condition: Excellent with honest presentation
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  • Service: Freshly serviced in March 2026
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  • Condition: great shape with minor scuffing on the bracelet
  • Crystal clarity: clear
  • Bracelet stretch: little to no stretch
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  • Condition: Good with expected light wear to the bracelet and case
  • Case Diameter: 33mm
  • Bezel Material: 18k yellow gold
  • Crystal Type: Sapphire
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  • Condition: 7.5/10
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  • Case condition: slight marks on the dial visible under strong artificial light
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  • Condition: 9/10
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  • Movement caliber: 551
  • Bracelet type: Original Omega bracelet
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  • Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
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