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

Reference 123.55.31.20.55.010

About this watch

The Omega Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova is a masterclass in luxury watchmaking, seamlessly blending elegance, precision, and opulence. At its heart lies the Omega caliber 8421, a self-winding movement equipped with the Co-Axial escapement, delivering enhanced precision, stability, and durability. The case is beautifully crafted from red gold, giving it a warm, luxurious feel, while the stunning mother of pearl dial brings a sense of depth and elegance. Dauphine hands sweep gracefully across the dial, ensuring readability, as gem-set indexes add a touch of sparkle to the overall aesthetic. With a water resistance of up to 100 meters, this watch is designed for real-world use, effortlessly transitioning from day to night. Its comfort and versatility make it suitable for various wrist sizes, while its lightweight nature ensures wearability all day. The Omega Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova is a testament to the brand's commitment to quality, innovation, and style.
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Key Features

  • Omega caliber 8421 self-winding movement
  • Co-Axial escapement for enhanced precision and stability
  • Red gold case with luxurious feel
  • Mother of pearl dial with depth and elegance
  • Dauphine hands for readability
  • Gem-set indexes for added sparkle
  • Water resistance up to 100 meters

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova
Reference
123.55.31.20.55.010
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 ref. 168.0057 w/ Cal. 1021 – Serviced, 35mm gold-capped case, original 1040 bracelet – $1,350

1973 Omega Constellation ref. 168.0057 w/ Cal. 1021 – Serviced, 35mm gold-capped case, original 1040 bracelet – $1,350

Omega - 168.0057 · $1,350
This is a 1973 Omega Constellation ref. 168.0057, powered by the automatic chronometer Cal. 1021 with quick-set day-date function. It features a gold-capped C-case, fluted gold bezel, and original Omega brick bracelet.

  • Condition: Very good condition
  • Bracelet size: up to approx. 7.25" wrist
  • Movement service date: May 2026
  • Crown condition: gold plating/cap has worn off
Posted at
May 27, 2026, 12:03 PM
Active
[WTS] Omega Constellation Pie Pan Crosshair Dial Dog Leg Demi Gold Ref 168.005 | Great Condition (With Box, Buckle & Serviced) | $2850

Omega Constellation Pie Pan Crosshair Dial Dog Leg Demi Gold Ref 168.005 | Great Condition (With Box, Buckle & Serviced) | $2850

Omega - 168.005 · $2,910
The Omega Constellation Ref. 168.005 features a demi-gold configuration with a gold-capped construction over a stainless steel base, iconic pie-pan dial, dog-leg lugs, and crosshair layout. The watch is powered by the Omega Caliber 564 automatic chronometer movement and has been serviced to keep time well.

  • Condition: Great Condition
  • Movement: Omega Caliber 564 automatic chronometer movement
  • Case Size: 34mm diameter
Posted at
May 26, 2026, 11:15 PM
Active
[WTS] Omega Constellation Manhattan Day Date Two Tone - AP Bamboo Vibes For Just $995 SHIPPED!

Omega Constellation Manhattan Day Date Two Tone - AP Bamboo Vibes For Just $995 SHIPPED!

This Omega Constellation Manhattan is a fantastic choice for those looking for a thin and complicated two-tone watch. It features a crisp white dial with luminescent hands and gold dot markers, and comes on its original integrated bracelet.

  • Condition: Pre-owned, unpolished with age-related wear
  • Case Size: 33MM
  • Bracelet Length: approximately 7.25 inches
  • Movement Type: Swiss quartz
Posted at
May 25, 2026, 7:59 PM
Active
[WTS] Omega Constellation Ref. 168.005 “Türler” | Good Condition (Serviced) | $1700

Omega Constellation Ref. 168.005 “Türler” | Good Condition (Serviced) | $1700

Omega - 168.005 · $1,700
For sale is an Omega Constellation Ref. 168.005 'Türler' in good condition, serviced.

  • Condition: Good
  • Serviced: yes, serviced
  • Status: good condition
Posted at
May 24, 2026, 10:19 PM
Active
[WTS] Vintage Omega Constellation C-shape 168.027 from 1968 with white-gold bezel and 'linen' dial, great condition

Vintage Omega Constellation C-shape 168.027 from 1968 with white-gold bezel and 'linen' dial, great condition

Omega - 168.027 · $890
A vintage Omega Constellation from 1968 featuring an automatic caliber 564 movement with a quickset date, a white-gold bezel, and a 'linen' dial.

  • Condition: 7.5/10, slight marks on dial and case, minor scratches on crystal
  • Movement: caliber 564
  • Bezel material: white gold
  • Dial description: linen
Posted at
May 24, 2026, 1:30 PM
Active
[WTS] Omega Constellation 1460.75.00 - Factory Diamonds & Mother of Pearl Dial

Omega Constellation 1460.75.00 - Factory Diamonds & Mother of Pearl Dial

Omega - 1460.75.00 · $1,600
A beautifully kept example of the Omega Constellation reference 1460.75.00, featuring a mother of pearl dial and factory diamond markers.

  • Condition: Pre-owned, very light signs of wear
  • Case diameter: 22.5mm
  • Bezel material: factory diamonds
  • Bracelet length: 15cm
Posted at
May 22, 2026, 5:00 PM
Active
[WTS] Omega Constellation Gold Filled Reference 14902 SERVICED

Omega Constellation Gold Filled Reference 14902 SERVICED

Omega - 14902 · $1,350
A vintage Omega Constellation Pie Pan from 1966, featuring a gold-filled case and bezel.

  • Condition: Good condition with wear and aging on the dial
  • Case Width: 34mm
  • Gold Filling Type: Gold filled
Posted at
May 22, 2026, 11:43 AM
Active
[WTS] 1969 Omega Constellation 168.029 Fully Serviced

1969 Omega Constellation 168.029 Fully Serviced

Omega - 168.029 · $1,550
This beautiful 1969 Omega Constellation with linen dial has been fully serviced and confirmed to have all original parts.

  • Condition: Fully serviced, with original parts replaced and confirmed by a specialty watchmaker
  • Year Of Manufacture: 1969
  • Dial Type: linen dial
Posted at
May 20, 2026, 6:26 PM
Active
[WTS] Omega Constellation 166.0261 Automatic 18k Fluted Bezel Cal 1020  Mens Watch $1200

Omega Constellation 166.0261 Automatic 18k Fluted Bezel Cal 1020 Mens Watch $1200

Omega - 166.0261 · $1,200
This Omega Constellation features an automatic movement and a fluted bezel, housed in a stainless steel and 18k gold case.

  • Condition: Preowned, In Good condition with some wear and marks
  • Movement: Cal 1020 Automatic
  • Case material: Stainless steel & 18k Gold
  • Band size: up to 19 cm
Posted at
May 18, 2026, 7:07 PM
Active