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

Reference 123.55.31.20.55.006

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

About this watch

The Omega Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova is a masterpiece of luxury watchmaking, blending exquisite design with cutting-edge technology. Its mother of pearl dial shines with an ethereal glow, while the gem-set indexes add a touch of sparkle that catches the eye. The round case, crafted from 18 Ct red gold, exudes luxury and sophistication, making it a statement piece for any occasion. At its core lies the Omega caliber 8421, an automatic movement featuring the Co-Axial escapement, which enhances accuracy and reduces friction, leading to better performance over time. With a power reserve of 50 hours and a frequency of 25,200 vibrations per hour, this watch is built for performance. It's a chronometer, meaning it has been tested and certified for superior precision—a crucial factor for any serious watch enthusiast. The Constellation Co-Axial 31 also boasts an impressive water resistance of up to 100 meters, making it perfect for swimming or engaging in water sports without worrying about damaging it. Whether you're at a gala or a casual brunch, this watch is sure to turn heads.
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Key Features

  • Omega caliber 8421 automatic movement
  • Co-Axial escapement for enhanced accuracy and reduced friction
  • Chronometer tested and certified for superior precision
  • Up to 100 meters water resistance
  • 31 mm diameter, suitable for smaller and larger wrists
  • Red gold case with gem-set bezel and mother of pearl dial
  • Dauphine hands for easy reading of the time

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova
Reference
123.55.31.20.55.006
Movement
8421
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Red Gold 31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1973 Omega Constellation Megaquartz Ref. 196.0015 Cal. 1310 - First Omega In-House Quartz Movement | $900

1973 Omega Constellation Megaquartz Ref. 196.0015 Cal. 1310 - First Omega In-House Quartz Movement | $900

Omega - 196.0015 · $900
The Omega Constellation Megaquartz Ref. 196.0015 features a 37 mm stainless steel case with an integrated bracelet and crisp silver dial. This rare version is in excellent condition, with minor markings on the bracelet.

  • Condition: Very good, almost NOS
  • Case Size: 37mm x 42.3mm stainless steel case
  • Thickness: 12.3mm
  • Lug Width: 18mm
Posted at
Nov 2, 2025, 12:03 PM
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View listing on r/WatchExchange
[WTS] Omega Constellation Crosshair Ref. 168.005 | Great Original Condition (Serviced) | $2200

Omega Constellation Crosshair Ref. 168.005 | Great Original Condition (Serviced) | $2200

Omega - 168.005 · $2,260
The Omega Constellation Pie Pan Ref. 168.005 features a crosshair dial in a stainless steel 34mm case with dog-leg lugs. It has a silver sunburst dial and is powered by the Omega Caliber 561 chronometer-certified automatic movement.

  • Condition: Great original condition with minor scratches and patina dots
  • Case diameter: 34mm
  • Movement type: Automatic
  • Movement caliber: 561
Posted at
Nov 2, 2025, 11:54 AM
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[WTS] Omega Constellation Lady 595.0102 only for 299$ Shipped 🚢

Omega Constellation Lady 595.0102 only for 299$ Shipped 🚢

Omega - 595.0102 · $299
Up for sale is an Omega Constellation Lady featuring a stainless steel case with a case size of 22mm, paired with an aftermarket lizard strap.

  • Condition: Pre-owned with hairline scratches on the case and signs of aging on the dial
  • Case Size: 22mm diameter
  • Movement Type: Quartz
Posted at
Nov 2, 2025, 8:52 AM
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[WTS] Omega Constellation C-Case 168.0056 Rare Navy Blue Dial – $950 OBO

Omega Constellation C-Case 168.0056 Rare Navy Blue Dial – $950 OBO

Omega - 168.0056 · $950
This Omega Constellation C-Case features a rare navy blue dial in a classic design, along with an original Cal. 1010 movement and a clean, original navy dial.

  • Condition: Good shape and ready to wear
  • Bracelet size: 6.3"
  • Max bracelet size: 7.5"
  • Movement: Cal. 1010
Posted at
Oct 30, 2025, 11:07 PM
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[WTS] 1963 Vintage Omega Constellation Ref. 167.005 | No Date | All Original | Freshly Serviced Chronometer Cal 561 | Sharp Unpolished Dog Leg Lugs | Great Vintage Condition | $1830

1963 Vintage Omega Constellation Ref. 167.005 | No Date | All Original | Freshly Serviced Chronometer Cal 561 | Sharp Unpolished Dog Leg Lugs | Great Vintage Condition | $1830

Posted at
Oct 30, 2025, 8:29 AM
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[WTS] Omega Constellation Pie Pan Demi Gold Ref. 168.005 | Excellent Original Condition (with original straps and buckle, Omega red box & Serviced) | $2950

Omega Constellation Pie Pan Demi Gold Ref. 168.005 | Excellent Original Condition (with original straps and buckle, Omega red box & Serviced) | $2950

Posted at
Oct 27, 2025, 11:34 PM
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[WTS] Omega Constellation 168.054

Omega Constellation 168.054

Posted at
Oct 27, 2025, 12:37 PM
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[WTS] Omega Constellation 168.046

Omega Constellation 168.046

Posted at
Oct 27, 2025, 12:31 PM
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[WTS] 1961 Omega Constellation (Original Box / Papers

1961 Omega Constellation (Original Box / Papers

Omega - 14393 · $1,200
This is a 1961 Omega Constellation reference 14393 with a white dome dial and original outer cardboard box. The watch has a 34mm stainless and 14k gold capped case and is powered by an automatic cal 561 movement.

  • Condition: Very good, with minor wear
  • Case Size: 34mm
  • Movement: Omega automatic cal 561
Posted at
Oct 26, 2025, 11:05 PM
Active
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