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

Reference 123.55.31.20.55.009

About this watch

The Omega Constellation 123.55.31.20.55.009 is a masterpiece of elegance and engineering, boasting an aura of sophistication with its round shape and 31mm diameter. The combination of white gold and mother of pearl creates a striking visual appeal, while the gem-set bezel elevates its luxurious presence. At the core of this timepiece is the Omega caliber 8421, featuring a free sprung-balance system and silicon balance-spring for exceptional reliability and longevity. The watch face is adorned with a unique snow-like texture on the mother of pearl dial, accompanied by gem-set indexes that twinkle like stars in the night sky. With a water resistance of 100 meters, this watch is built to withstand splashes and minor swimming sessions, making it an ideal choice for those who lead active lifestyles. The bracelet is crafted from white gold, matching the case perfectly, and feels luxurious against the skin with its adjustable fit. This timepiece embodies everything Omega stands for, masterfully combining beauty with precision.
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Key Features

  • Omega caliber 8421 automatic movement
  • Chronometer Certification for exceptional accuracy
  • Co-Axial Escapement technology for greater precision and stability
  • Self-Winding Mechanism for effortless winding
  • Water resistance of 100 meters
  • White gold case and bracelet for luxurious feel
  • Mother of pearl dial with unique snow-like texture

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 White Gold / Snow / Diamond Supernova
Reference
123.55.31.20.55.009
Movement
8421
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 2024 Omega Constellation Ref# 131.33.41.21.04.001 - Full Set box and papers

2024 Omega Constellation Ref# 131.33.41.21.04.001 - Full Set box and papers

The Omega Constellation is a flagship watch characterized by its half-moons and 'claws' on the side of the case, making it perfect for daily wear due to its class and durability. It features a 41mm blue ceramic bezel with blued hands, OMEGA logo, Constellation star, and indexes.

  • Condition: Very good condition with light signs of wear on the case
  • Case size: 41mm
  • Bezel material: blue ceramic
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Aug 29, 2025, 1:01 PM
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This is a 1980s Omega Constellation Day Date watch, featuring a black steel case with a quartz movement.

  • Year: 1980s
  • Dial material: steel
  • Size: 33mm diameter
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Aug 29, 2025, 11:29 AM
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[WTS] Omega Constellation 167.005

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The Omega Constellation is a 36mm watch with a 551 movement. It has an aftermarket bracelet that fits a 6.5in wrist.

  • Condition: pre-owned with light scratches and wear marks
  • Case size: 36mm
  • Movement: 551
  • Bracelet type: aftermarket
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Aug 28, 2025, 11:25 AM
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The Omega Constellation Globemaster 39mm is a versatile dress watch with a dark blue pie pan dial and fluted tungsten carbide bezel. It has goldilocks proportions and a beautiful 3-row bracelet.

  • 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
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