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] Price Drop! Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced 11/2025 – $1925 + shipping OBO

Price Drop! Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced 11/2025 – $1925 + shipping OBO

Omega - 168.005 · $1,925
A 1964 Omega Constellation Pie Pan ref. 168.005 featuring the classic dog-leg lugs and cal. 561 movement, serviced in November 2025.

  • Condition: Excellent for its age
  • Movement: cal. 561
  • Dial condition: excellent for its age
  • Lugs: dog-leg
Posted at
Apr 10, 2026, 12:48 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation 568.016 Ladies Automatic Chronometer 18K WG Bezel Cal 682 Full Set

Omega Constellation 568.016 Ladies Automatic Chronometer 18K WG Bezel Cal 682 Full Set

Omega - 568.016 · $1,349
This Omega Constellation Automatic Chronometer features a stainless steel case with an 18K solid white gold bezel, silver sunburst dial, and Observatory medallion caseback.

  • Condition: Near-mint
  • Case size: 25mm
  • Lug to lug length: 30mm
  • Movement frequency: 19,800 bph
Posted at
Apr 10, 2026, 1:43 AM
Active
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[WTS] Omega Constellation 14902 SC-61 — Pie Pan Crosshair — Cal. 561 — $1,999 Shipped (Tariff covered)

Omega Constellation 14902 SC-61 — Pie Pan Crosshair — Cal. 561 — $1,999 Shipped (Tariff covered)

Omega - 14902 SC-61 · $1,999
  • Condition: Pre-owned, serviced
  • Case Size: 34.5mm (excluding crown)
  • Lug To Lug: ~42mm
  • Thickness: ~11mm
Posted at
Apr 9, 2026, 2:55 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Ref. 198.0118 Textured Dial – $650

Omega Constellation Ref. 198.0118 Textured Dial – $650

Omega - 198.0118 · $650
  • Condition: fair vintage condition
  • Case size: 34mm (wears larger due to integrated bracelet design)
  • Fits wrist: ~7.5” comfortably
  • Bracelet material: original Omega, 10k gold filled
Posted at
Apr 8, 2026, 3:35 PM
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[WTS] Omega Constellation Pie Pan Crosshair Dial Ref 14393

Omega Constellation Pie Pan Crosshair Dial Ref 14393

Omega - 14393 · $1,950
This Omega Constellation features a Pie Pan Crosshair dial and comes fitted on an Omega beads of rice bracelet. The 35mm case is in good shape with sharp lugs.

  • Condition: some wear, overall great condition, sharp lugs
  • Bracelet: Omega beads of rice bracelet
Posted at
Apr 8, 2026, 11:55 AM
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[WTS] omega constellation 168.005 | original crystal & crown | unpolished

omega constellation 168.005 | original crystal & crown | unpolished

Omega - 168.005 · $2,250
The Omega Constellation is a luxury watch being sold unpolished, retaining its original crystal and crown. It comes with a metal lined presentation box.

  • Condition: unpolished
  • Original crystal & crown: true
  • Shipped: true
Posted at
Apr 8, 2026, 7:29 AM
Active
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[WTS] Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced (11/2025) – $1945 + shipping OBO

Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced (11/2025) – $1945 + shipping OBO

Omega - 168.005 · $1,945
a 1964 Omega Constellation Pie Pan ref. 168.005 featuring dog-leg lugs and cal. 561 movement, serviced in November 2025.

  • Condition: Excellent for its age
  • Calibre: Cal. 561 movement
  • Year: 1964
  • Movement type: Chronometer-grade
Posted at
Apr 7, 2026, 3:26 PM
Active
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[WTS] (Spiralwinder) Vintage Omega Seamaster and Constellation Display Caseback

(Spiralwinder) Vintage Omega Seamaster and Constellation Display Caseback

· $65
This listing is about a display caseback designed to fit many Omega Seamaster and Constellation watches from the 1960s, made by Spiralwinder.

  • Caseback type: Spiralwinder
  • Compatible models: 1960s Seamasters and Constellations
Posted at
Apr 7, 2026, 1:54 PM
Active
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[WTS] Omega Constellation Pie Pan Cal. 564 Ref. 168.005 | Great Condition (Serviced) | $2600

Omega Constellation Pie Pan Cal. 564 Ref. 168.005 | Great Condition (Serviced) | $2600

Omega - 168.005 · $2,600
The Omega Constellation Pie Pan Ref. 168.005 is a quintessential 1960s dress watch that embodies Omega’s pursuit of precision and elegance during the golden age of Swiss watchmaking.

  • Condition: Great serviced condition
  • Movement: Omega Calibre 564
  • Jewels: 24
Posted at
Apr 6, 2026, 11:13 PM
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