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

Reference 123.55.31.20.55.009

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

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] Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1300 SHIPPED

Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1300 SHIPPED

Omega - 2852-1 · $1,300
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
Posted at
Mar 27, 2026, 4:27 PM
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[WTS] 1971 Omega Constellation ref. 168.0056 w/ freshly serviced Cal. 1011 - clean original dial – $870 shipped

1971 Omega Constellation ref. 168.0056 w/ freshly serviced Cal. 1011 - clean original dial – $870 shipped

Omega - 168.0056 · $870
A 1971 Omega Constellation ref. 168.0056 with a clean, original dial and unpolished C-shape case, powered by the chronometer-certified Cal. 1011 automatic movement.

  • Movement: chronometer-certified Cal. 1011 automatic
  • Case Size: 35mm diameter
  • Lug Width: 19mm
Posted at
Mar 25, 2026, 7:56 PM
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[WTS] Omega Constellation Automatic 368.1075 $850 Shipped!

Omega Constellation Automatic 368.1075 $850 Shipped!

Omega - 368.1075 · $850
This Omega Constellation Automatic is a vintage two-tone piece with a distinct 80s/90s look, featuring a gold-tone dial and Roman numeral bezel.

  • Condition: Pre-owned with honest wear consistent with age
  • Bracelet Authenticity Confidence: 80%
  • Bracelet Origin: Genuine Omega (doubtful for this specific watch)
  • Patina Spidering: noticeable throughout the dial
Posted at
Mar 25, 2026, 3:02 PM
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[WTS] Omega Constellation Automatic 368.1075 $950 Shipped!

Omega Constellation Automatic 368.1075 $950 Shipped!

Omega - 368.1075 · $950
This Omega Constellation Chronometer Automatic features a gold-tone dial, Roman numeral bezel, and an original two-tone bracelet.

  • Condition: Pre-owned with normal surface wear and noticeable patina/spidering on the dial
  • Bracelet: incorrect for this watch but wearable
  • Bezel material: 18K Yellow Gold
Posted at
Mar 25, 2026, 12:38 PM
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[WTS] Wallet Friendly Integrated Day Dates! Omega Constellation Manhattan Stainless & Two Tone

Wallet Friendly Integrated Day Dates! Omega Constellation Manhattan Stainless & Two Tone

Omega - Constellation Manhattan Day-Date · $1,150
A pair of Omega Constellation Manhattan Day-Date watches in stainless steel and two-tone variants. Both feature crisp white dials, luminescent hands, and gold dot markers. The cases are 33MM with oversized bezels and integrated bracelets, giving a larger wear than expected.

  • Condition: Pre-owned, unpolished with some age-related wear and patina forming
  • Case Diameter: 33mm
  • Bracelet Length: [object Object]
  • Movement Type: Swiss automatic with quickset date
Posted at
Mar 23, 2026, 9:35 PM
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[WTS] omega constellation deluxe ref. 2853 in 18K rose gold. Serviced. $6500 no trades.

omega constellation deluxe ref. 2853 in 18K rose gold. Serviced. $6500 no trades.

Omega - 2853 · $6,500
  • Material: 18K rose gold
Posted at
Mar 23, 2026, 7:53 PM
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[WTS] Omega Constellation Double Eagle Chronograph 41mm Reverse Panda Ref. 1819.51.91 - Co-Axial Cal. 3313

Omega Constellation Double Eagle Chronograph 41mm Reverse Panda Ref. 1819.51.91 - Co-Axial Cal. 3313

Omega - 1819.51.91 · $2,175
This Omega Constellation Double Eagle Chronograph features a 41mm stainless steel case, black dial, and automatic chronometer-certified movement with Co-Axial escapement. It has a reverse panda look and comes on an original integrated black rubber strap.

  • Condition: Solid, honest condition with superficial wear and light scratches
  • Case size: 41mm stainless steel
  • Diameter: 41mm
  • Bezel: black aluminum Roman numeral
Posted at
Mar 22, 2026, 8:48 PM
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[WTS] Omega Constellation Globemaster Annual Calendar Box & Papers

Omega Constellation Globemaster Annual Calendar Box & Papers

Omega - Constellation Globemaster Annual Calendar · $5,500
The Omega Constellation Globemaster Annual Calendar features a sunburst grey dial, applied hour markers, and a clean annual calendar display powered by the in-house Co-Axial Master Chronometer Caliber 8922.

  • Condition: Great pre-owned condition with light signs of careful wear
  • Case size: 41mm
  • Material: stainless steel
  • Bracelet material: stainless steel
Posted at
Mar 22, 2026, 12:30 PM
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[WTS] 1963 Omega Constellation Ref. 168.005 | Onyx Markers | Dog Legs Lugs | All Original | only $1400 (SERVICED)

1963 Omega Constellation Ref. 168.005 | Onyx Markers | Dog Legs Lugs | All Original | only $1400 (SERVICED)

Omega - 168.005 · $1,400
This 1963 Omega Constellation is powered by a chronometer-rated Caliber 561 movement and features an all-original configuration with stainless steel case, date at 3 o'clock, and onyx markers.

  • Condition: some hairlines but case remains sharp; dial has some light spotting
  • Movement: Caliber 561, chronometer-rated automatic
  • Case material: stainless steel
  • Dimensions: [object Object]
Posted at
Mar 22, 2026, 10:57 AM
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