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

Reference 123.20.31.20.55.002

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece of horology, blending luxury, precision, and history. This stunning timepiece boasts an exquisite design featuring stainless steel and yellow gold, complemented by a captivating Mother of Pearl (MOP) dial that shimmers like the ocean. Underneath lies the renowned Omega caliber 8520 automatic movement, a marvel of engineering with a power reserve of 50 hours and Co-Axial escapement, reducing friction for enhanced longevity and precision. With its water resistance of 100 meters and sapphire glass protection, this watch is perfect for daily wear. The comfortable design and adjustable links ensure a secure fit, while the gem-set indexes add an opulent touch. As a true investment piece, the Omega Constellation Co-Axial 31 combines timeless aesthetics with cutting-edge technology, making it an ideal choice for watch collectors, individuals seeking precision and reliability, and fashion enthusiasts alike.
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Key Features

  • Omega Caliber 8520 Automatic Movement
  • Co-Axial Escapement with Reduced Friction
  • Water Resistance of 100 Meters
  • Sapphire Glass Protection
  • Mother of Pearl (MOP) Dial
  • Stainless Steel and Yellow Gold Construction
  • Gem-Set Indexes for Opulent Touch

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Yellow Gold / MOP
Reference
123.20.31.20.55.002
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] 2024 Omega Constellation - Full set Box and Papers - Ref# 131.33.41.21.04.001

2024 Omega Constellation - Full set Box and Papers - Ref# 131.33.41.21.04.001

The Omega Constellation is a flagship watch characterized by its half-moons and claws on the side of the case, making it a perfect combination of class and durability. The 41 mm case features a blue ceramic bezel, making it suitable for daily wear.

  • Condition: very good with light signs of wear on the case
  • Case size: 41mm diameter
  • Bezel material: blue ceramic
  • Band condition: near perfect
Posted at
Apr 26, 2025, 2:59 PM
Active
[WTS] Vintage Omega Constellation Automatic - Ultra Thin Movement

Vintage Omega Constellation Automatic - Ultra Thin Movement

Omega - 157.0002 · $999
This is a rare example of the ultra thin automatic Omega Constellation with a clean Genta-inspired design, all original and in exceptional shape.

  • Condition: Exceptional shape, all original
  • Case Size: 35mm
  • Dial Type: Original
  • Crown Type: Original
Posted at
Apr 26, 2025, 1:49 PM
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[WTS] Vintage Omega Constellation Chronometer - 168.0056 - C-Shaped Case - $825 Shipped!

Vintage Omega Constellation Chronometer - 168.0056 - C-Shaped Case - $825 Shipped!

Omega - 168.0056 · $825
This vintage Omega Constellation Chronometer features an automatic movement and a C-shaped case measuring approximately 35mm in diameter, with a date window at 3 o'clock.

  • Condition: good condition with signs of wear, consistent with its age
  • Case diameter: 35mm
  • Movement type: automatic
Posted at
Apr 26, 2025, 11:03 AM
Active
[WTS] Omega Constellation. PiePan. Automatic.

Omega Constellation. PiePan. Automatic.

Omega - Constellation · $1,450
This Omega Constellation features an automatic movement and a Pie Pan dial, with a stainless steel AM strap.

  • Condition: nice condition
  • Movement type: automatic
  • Strap: AM strap
Posted at
Apr 25, 2025, 3:30 PM
Active
[WTS] Omega Constellation Co-Axial Chronometer, or, "We have PRX at home"

Omega Constellation Co-Axial Chronometer, or, "We have PRX at home"

A 35mm Omega Constellation Co-Axial Chronometer with a reverse clous de paris dial, powered by the Caliber 2500 chronometer movement.

  • Condition: Good, with minor hairline scratches on case and bracelet
  • Diameter: 35mm
  • Lug To Lug: 38.4mm
  • Thickness: 10.8mm
Posted at
Apr 25, 2025, 11:54 AM
Active
Omega Constellation Globemaster Master Chronometer

Omega Constellation Globemaster Master Chronometer

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