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.
Buy Now on Jomashop
This is an affiliate link

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 2-Tone Automatic 🇨🇭

Omega Constellation 2-Tone Automatic 🇨🇭

This beautiful Omega Constellation Automatic is a 2-tone stainless steel and gold watch with a matching gold dial. It has a stainless steel bracelet that can fit wrists up to 8 inches in diameter.

  • Condition: Great condition with minor signs of wear
  • Case diameter: 35mm (without crown)
  • Lug to lug: 38mm
  • Lug width: 23mm
Posted at
Dec 14, 2025, 9:08 PM
Active
Omega Constellation Globemaster Master Chronometer

Omega Constellation Globemaster Master Chronometer

Omega - 130.30.39.21.03.001 · $4,650
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