Omega Constellation Constellation Co-Axial 38 White Gold / Diamond / Black

Reference 123.55.38.21.51.001

About this watch

The Omega Constellation Co-Axial 38 (model 123.55.38.21.51.001) is an epitome of luxury and sophistication, boasting an impeccable design with a white gold case, gem-set bezel, and rich black dial. The watch features a robust automatic movement, the Omega caliber 8501, which boasts precision and innovation, including a Co-Axial escapement that reduces friction and enhances longevity. With a power reserve of approximately 60 hours, this chronometer is reliable and accurate. Its stunning design combines elegance with functionality, making it perfect for everyday wear or formal occasions. The watch displays hours, minutes, seconds, and date, while its Dauphine hands glide smoothly over the dial, providing clear visibility. With a water resistance of up to 100 meters, you can enjoy swimming, snorkeling, or other water activities without worrying about your timepiece. As a statement piece, this Omega Constellation Co-Axial 38 carries with it a legacy of excellence and a promise of reliability, making it a worthy addition to any collection.
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Key Features

  • White gold case
  • Gem-set bezel
  • Automatic movement (Omega caliber 8501)
  • Co-Axial escapement
  • Chronometer accuracy
  • Water resistance up to 100 meters
  • Dauphine hands

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 38 White Gold / Diamond / Black
Reference
123.55.38.21.51.001
Movement
8501
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
White Gold 38mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation Day-Date Quartz Just Serviced c.1980

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This is a classic Omega Constellation with day-date display and slim quartz profile from the 1980s. It has been recently serviced and is running properly.

  • Condition: Set watch only, with some wear on the case and light marks on the crystal
  • Era: c.1980
  • Movement Type: Quartz
  • Functionality: Day-Date
Posted at
Jan 30, 2026, 8:34 PM
Active
[WTS] Omega Constellation Ref. 1267.15.00 - Diamond Bezel/Gold Bar Bracelet/Textured Dial | Box/Cards

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Omega - 1267.15.00 · $1,400
This is an Omega Constellation Ref. 1267.15.00, featuring a diamond bezel and gold bar bracelet on a textured yellow dial.

  • Condition: Excellent used condition
  • Case diameter: 22.5 mm
  • Water resistance: 30m depth rating
  • Movement type: Quartz precision movement
Posted at
Jan 30, 2026, 11:31 AM
Active
[WTS] Omega Constellation TV 168.047 RARE GREY DIAL SERVICED

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Omega - 168,047 · $1,350
This Omega Constellation TV from the 70s features a rare dark gray dial with soleil finish and is completely original in all its parts.

  • Condition: Original, serviced
  • Year: 1971
  • Case size: 33x39mm (crown excluded)
  • Caliber: Automatic 1001 Omega
Posted at
Jan 30, 2026, 4:43 AM
Active
[WTS] Tropical Dial Omega Pie Pan Constellation 168.005

Tropical Dial Omega Pie Pan Constellation 168.005

Omega - 168.005 · $1,600
For sale is a stunning Tropical dial Omega Pie Pan Constellation watch.

  • Dial type: Tropical dial
Posted at
Jan 29, 2026, 12:06 PM
Active
[WTS] Redial Omega Pie Pan Constellation 168.005 - Polished case with sharp edges

Redial Omega Pie Pan Constellation 168.005 - Polished case with sharp edges

Omega - 168.005 · $1,600
For sale a beautiful Omega Pie Pan Constellation with Top notch redial quality and Case polished with sharp edges.

  • Redial quality: top notch
  • Shipping options: Fedex/DHL
Posted at
Jan 29, 2026, 12:01 PM
Active
[WTS] Omega Constellation 🌌 perpetual calendar 📅 blue dial Quartz movement!

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This Omega Constellation is a rare quartz perpetual calendar watch with a blue dial. The sunburst dial appears to change color depending on the angle and lighting, ranging from ocean blue to navy blue or blue grey to blue purple.

  • Condition: Runs like new, serviced in 2023
  • Movement: quartz
  • Battery status: new
  • Case material: unknown (assumed metal due to 18k stamp)
Posted at
Jan 28, 2026, 4:29 PM
Active
[WTS] Vintage Omega Trio – Century / Genève Dynamic / Constellation Quartz

Vintage Omega Trio – Century / Genève Dynamic / Constellation Quartz

A trio of vintage Omega watches including the Century Ref. 121001 from 1962 with a manual wind Cal. 269 movement and a gold-capped stainless steel caseback.

  • Case material 1: gold-capped
  • Case material 2: stainless steel
  • Dial color 1: beautiful 'Jupiter' patina
Posted at
Jan 28, 2026, 8:27 AM
Active
[WTS] Omega Constellation Globemaster Annual Calender 130.33.41.22.06.001 Box & Papers

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The Omega Constellation Globemaster Annual Calendar features a sunburst grey dial, applied hour markers, and a clean annual calendar display. It is powered by the Co-Axial Master Chronometer Caliber 8922, delivering outstanding precision and resistance to magnetic fields up to 15,000 gauss.

  • Condition: Great pre-owned condition
  • Movement: in-house Co-Axial Master Chronometer Caliber 8922
  • Bracelet material: stainless steel
Posted at
Jan 27, 2026, 11:44 PM
Active