Omega Constellation Constellation Co-Axial 31 Stainless Steel / MOP

Reference 123.10.31.20.55.001

Omega Constellation Co-Axial 31 Stainless Steel / MOP

About this watch

The Omega Constellation Co-Axial 31 is a stunning piece that beautifully marries function and form. With its exquisite design, reliable movement, and versatile nature, it’s a watch that can easily become a cherished part of your collection. This timepiece is perfect for anyone who appreciates fine craftsmanship and luxury, whether you’re a watch collector, a business professional, or someone who enjoys elegant accessories. The Omega Constellation Co-Axial 31 is not just a statement piece; it’s a testament to the legacy of innovation and excellence that Omega embodies. Its Chronometer certification ensures accuracy, while its water resistance up to 100 meters makes it suitable for swimming and snorkeling. This watch can be dressed up or down, making it an excellent addition to any wardrobe. When you wear an Omega, you’re embracing a legacy of precision and elegance.
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Key Features

  • Omega caliber 8520 movement
  • Sapphire crystal glass
  • 100m water resistance
  • Stunning MOP dial
  • Gem-set indexes
  • Chronometer certified for accuracy

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / MOP
Reference
123.10.31.20.55.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

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This Omega Constellation features a cushion-shaped case with gold-plated plating, a beautiful sunburst champagne dial, and an acrylic crystal. The watch has a thin and comfortable design.

  • Condition: Exceptional for ~50 years old
  • Case Shape: cushion-shaped
  • Case Plating: gold-plated
  • Dial Type: sunburst champagne
Posted at
Dec 8, 2025, 9:05 PM
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[WTS] Omega constellation C Ref 168.019

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For sale is my Omega constellation type C ref 168.019, which comes with the original brick style omega bracelet.

  • Condition: Pre-owned, some damage (cracked crystal)
  • Bracelet type: Original brick style
  • Crown origin: Constellation pie pan
  • Serviced: Yes, couple years ago
Posted at
Dec 7, 2025, 4:58 PM
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[WTS] Omega Constellation Ref. 168.016 cal. 751 | Great Condition (Serviced) | $1200

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A classic Omega Constellation Ref. 168.016, dating to around 1969, powered by the Caliber 751 movement with day and date functions.

  • Condition: Great serviced condition
  • Case size: 35mm diameter
  • Movement type: automatic
Posted at
Dec 7, 2025, 12:31 PM
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[WTS] Omega Constellation Automatic 🇨🇭 free shipping to USA

Omega Constellation Automatic 🇨🇭 free shipping to USA

Omega - Constellation Automatic · $1,000
This Omega Constellation Automatic features a 2-tone stainless steel and gold case with a matching gold dial. The watch is in great condition with only minor signs of wear.

  • Condition: Great condition with minor signs of wear
  • Case size: 35mm (without crown)
  • Lug to lug: 38mm
  • Lug width: 23mm
Posted at
Dec 6, 2025, 8:54 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

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The Omega Constellation 196.0071 is a classic watch model for sale.

Posted at
Dec 6, 2025, 2:26 PM
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[WTS] Vintage Omega Constellation Marine 596.0029 Steel Ladies Watch $600

Vintage Omega Constellation Marine 596.0029 Steel Ladies Watch $600

Omega - 596.0029 · $600
A vintage Omega Constellation Marine ladies watch in stainless steel case, powered by a quartz movement.

  • Condition: Preowned with wear, dents, and marks
  • Case material: stainless steel
  • Movement: quartz
  • Band size: approximately 18 cm
Posted at
Dec 5, 2025, 12:30 AM
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[WTS] Omega Constellation Jumbo 14777-61SC 37mm | Good Condition (Serviced) | $1700

Omega Constellation Jumbo 14777-61SC 37mm | Good Condition (Serviced) | $1700

Omega - 14777-61SC · $1,760
The Omega Constellation Jumbo Ref. 14777-61SC is a vintage watch with a clean, flat dial aesthetic and a starburst dial that plays with light in unique ways.

  • Condition: Good condition, minor scratches and natural marks for its age
  • Case diameter: 37mm
  • Lug width: 19mm
  • Movement: Caliber 561, chronometer-rated automatic with date complication
Posted at
Dec 4, 2025, 10:35 PM
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[WTS] OMEGA Constellation - 368.1201 - 2006 - Amazing condition - Lowest price online with price match ⭐️

OMEGA Constellation - 368.1201 - 2006 - Amazing condition - Lowest price online with price match ⭐️

OMEGA - 368.1201 · $1,595
A pre-owned Omega Constellation 368.1201 in excellent condition, featuring an automatic stainless steel movement with a white linen dial and a 35.5mm diameter integrated bracelet.

  • Condition: Excellent
  • Diameter: 35.5mm
  • Thickness: 10mm
  • Water Resistance: 3ATM
Posted at
Dec 4, 2025, 2:59 PM
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[WTS] Omega Constellation Automatic Chronometer Ref. 167.005 | Great Condition (Serviced) | $1250

Omega Constellation Automatic Chronometer Ref. 167.005 | Great Condition (Serviced) | $1250

Omega - 167.005 · $1,250
The Omega Constellation Ref. 167.005 is one of the most iconic mid-century designs from Omega, featuring a beautiful sunburst dial, sharp dog-leg lugs, and dauphine hands.

  • Condition: great serviced condition
  • Movement: Omega Caliber 551
  • Power reserve: over 40 hours
  • Case size: 34mm
Posted at
Dec 2, 2025, 12:06 PM
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