Omega Constellation Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / MOP

Reference 123.20.27.20.55.003

Omega Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / MOP

About this watch

Welcome to the world of luxury watches, where craftsmanship meets elegance. Today, we're diving deep into the Omega Constellation Co-Axial 27, specifically the model 123.20.27.20.55.003. This exquisite timepiece combines the finest materials with innovative technology, making it a must-have for collectors and enthusiasts alike. So, buckle up as we explore every intricate detail of this stunning watch! Omega is not just a brand; it's a legacy. Founded in 1848, Omega has become synonymous with precision and luxury. Known for its rich history of innovation, including being the official timekeeper of the Olympic Games, Omega stands at the pinnacle of Swiss watchmaking. With each piece, they blend tradition with modern design, and the Constellation series is a perfect example of this philosophy. The Co-Axial 27 is a tribute to this heritage, featuring a blend of traditional craftsmanship and cutting-edge technology. The brushed stainless steel and yellow gold combination creates a stunning visual contrast, embodying sophistication and style. One of the standout features of this watch is its breathtaking mother of pearl (MOP) dial. The iridescent quality of MOP adds a unique flair, catching the light in a way that changes with every movement. Each time you glance at the watch, you'll notice different hues of white, making it a captivating piece.
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Key Features

  • Omega caliber 8520 automatic movement
  • Co-Axial escapement for reduced friction and improved precision
  • 100m water resistance for swimming and snorkeling
  • Mother of pearl (MOP) dial with iridescent quality
  • Gem-set indexes on the dial for added elegance
  • Certified chronometer by COSC, ensuring exceptional timing accuracy
  • Durable materials resistant to scratches and tarnishing

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / MOP
Reference
123.20.27.20.55.003
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1971 Omega Constellation Chronometer C-Case ref. 168.0056 w/ Cal. 1011 – serviced Dec 2025 – full original bracelet – $1150 ALL IN shipped

1971 Omega Constellation Chronometer C-Case ref. 168.0056 w/ Cal. 1011 – serviced Dec 2025 – full original bracelet – $1150 ALL IN shipped

Omega - 168.0056 · $1,150
A vintage 1971 Omega Constellation Chronometer in the classic C-Case with a clean dial and full original bracelet.

  • Condition: Excellent condition, with a few scratches on the crystal
  • Calibre: Cal. 1011 (automatic)
  • Case Size: 35mm (excluding crown)
  • Lug Width: 19mm
Posted at
Dec 21, 2025, 9:26 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation diamond Dail Gold Bazel Ref : 168.0062.

Omega Constellation diamond Dail Gold Bazel Ref : 168.0062.

Omega - 168.0062 · $1,400
Up for sale is an Omega Constellation diamond dial watch in 18k gold bezel, featuring a chronometer movement and measuring 37mm case width. It's in excellent condition with some signs of wear.

  • Condition: Excellent condition, with light wear, scratches and marks
  • Case material: 18K Gold / Stainless steel
  • Movement type: Chronometer
Posted at
Dec 21, 2025, 8:20 AM
Active
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[WTS] Omega constellation 🌌 Gerald Genta

Omega constellation 🌌 Gerald Genta

Omega - Constellation · $950
This Omega Constellation is a vintage watch featuring a 1960s cal 631 movement, accompanied by a rose gold movement. It has a case diameter of approximately 35-36mm.

  • Crown size: 35-36mm
  • Movement type: cal 631
  • Case material: rose gold
Posted at
Dec 20, 2025, 5:53 PM
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[WTS] Omega Constellation 🌌 blue dial .

Omega Constellation 🌌 blue dial .

Omega - Constellation · $980
A 1990s Omega Constellation features a blue dial with changing color depending on the angle, housed in a 36mm case with sapphire crystal.

  • Case size: 36mm
  • Crystal type: sapphire crystal
  • Bracelet length: up to 7.25 inches
Posted at
Dec 19, 2025, 10:54 PM
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[WTS] Omega Constellation. Globemaster. Annual Calendar. 🎁

Omega Constellation. Globemaster. Annual Calendar. 🎁

Omega - 130.33.41.22.06.001 · $4,300
A Omega Constellation Globemaster Annual Calendar watch, featuring a 41mm coaxial automatic movement.

  • Case Size: 41mm diameter
  • Movement Type: Coaxial Automatic
Posted at
Dec 19, 2025, 2:07 PM
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[WTS] Omega Constellation C Case 168.017 Cal 564, Serviced - $790

Omega Constellation C Case 168.017 Cal 564, Serviced - $790

Omega - 168.017 Cal 564 · $790
Up for sale is my Omega Constellation C Case 168.017 Cal 564 in good condition, featuring a 35-36mm case size.

  • Condition: Good condition with some signs of aging
  • Case Size: 35-36mm
  • Bezel Condition: High polished with light hairlines
  • Caseback Condition: Polished by previous owner
Posted at
Dec 18, 2025, 8:42 PM
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[WTS] Omega Constellation 196.0071 – FaceTime / other Verification Available – $200 Shipped

Omega Constellation 196.0071 – FaceTime / other Verification Available – $200 Shipped

Omega - 196.0071 · $200
The Omega Constellation 196.0071 is being sold, with the seller offering FaceTime or other verification methods.

  • Verification method: FaceTime / other
Posted at
Dec 18, 2025, 1:07 PM
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[WTS] Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $5,575
This is a rare 1960s Omega Constellation in 18K rose gold with a silver pie-pan dial. The watch has a unique character and classic proportions, suitable for both men and women.

  • Condition: Beautiful condition with strong, well-defined edges and an exceptionally clean period-correct pie-pan silver dial.
  • Case Size: 34mm
  • Year: 1960s
  • Material: 18K rose gold
Posted at
Dec 17, 2025, 5:47 PM
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[WTS] Omega Constellation Globemaster – New – 2025

Omega Constellation Globemaster – New – 2025

Omega - 130.33.39.21.02.001 · $4,950
The Omega Constellation Globemaster features a modern design with a coin-edge bezel and classic pie-pan dial inspired by original Constellation models of the 1950s, powered by Omega's Co-Axial Master Chronometer Caliber 8900.

  • Condition: Unworn/New
  • Case size: 39mm
  • Material: stainless steel
  • Diameter: 39mm
Posted at
Dec 16, 2025, 12:54 PM
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