Omega Constellation Constellation Co-Axial 31 Stainless Steel / Yellow Gold / MOP

Reference 123.20.31.20.05.002

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece of luxury watchmaking, boasting an exquisite mother of pearl dial, high-quality materials, and chronometer certification for accuracy. This stunning timepiece combines classic elegance with modern technology, making it perfect for those who appreciate luxury and precision in their timepieces. With its comfortable size and fit, good water resistance, and rich history, the Constellation Co-Axial 31 is a standout choice in the crowded luxury watch market.
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Key Features

  • Stunning mother of pearl dial
  • Chronometer certification for accuracy
  • High-quality materials (stainless steel and yellow gold)
  • Comfortable size and fit
  • Good water resistance
  • Robust automatic movement (Omega caliber 8520)
  • 12-hour fixed bezel

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Yellow Gold / MOP
Reference
123.20.31.20.05.002
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation Ref. 168.016 cal. 751 | Great Condition (Serviced) | $1200

Omega Constellation Ref. 168.016 cal. 751 | Great Condition (Serviced) | $1200

Omega - 168.016 cal. 751 · $1,200
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
Active
[WTS] Omega Constellation Automatic 🇨🇭 free shipping to USA

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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

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

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Dec 6, 2025, 2:26 PM
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Omega Constellation Globemaster Master Chronometer

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The Omega Constellation Globemaster 39mm is a versatile dress watch with a dark blue pie pan dial and fluted tungsten carbide bezel. It has goldilocks proportions and a beautiful 3-row bracelet.

  • Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
  • Case dimensions: 39mm x 46.7mm lug to lug x 12.6mm thick
  • Bracelet type: 3-row with slightly curved central links
Posted at
Mar 31, 2025, 10:32 AM
Active