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

Reference 123.25.31.20.55.003

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

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece that beautifully marries form and function. With its luxurious materials, sophisticated design, and reliable movement, it’s a watch that is sure to be cherished for generations. The combination of stainless steel and yellow gold creates a striking contrast that is both modern and classic. The gem-set bezel adds a touch of glamour, making it perfect for formal occasions or everyday wear. The dial is made of exquisite Mother of Pearl, which not only enhances its beauty but also gives it a dynamic quality. Depending on the light, the dial can appear in various colors, ranging from shimmering white to soft pastel hues. Featuring Dauphine hands, the watch ensures excellent readability. At the heart of the Constellation Co-Axial 31 lies the Omega caliber 8520, an automatic movement known for its precision and reliability. The Co-Axial escapement is a significant innovation that reduces friction between the parts, enhancing the watch's longevity and accuracy. With a water resistance of 100 meters, this watch is ideal for daily wear. Whether you’re splashing in the pool or caught in the rain, the Omega Constellation can handle it all.
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Key Features

  • Omega caliber 8520 automatic movement
  • Sapphire crystal glass
  • Water resistance up to 100 meters

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Yellow Gold / Diamond / MOP
Reference
123.25.31.20.55.003
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. Pie Pan. Solid Gold. 🔥

Omega Constellation. Pie Pan. Solid Gold. 🔥

Omega · $3,795
This Omega Constellation is a solid gold automatic watch with a gorgeous lizard leather strap.

  • Condition: Clean
  • Material: 18K solid gold
  • Band Material: lizard leather
Posted at
Jun 23, 2025, 7:49 PM
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[WTS] 1966 Omega Constellation ref. 168.004 w/ Cal. 561 – Hidden Crown Case, Serviced – $680 shipped

1966 Omega Constellation ref. 168.004 w/ Cal. 561 – Hidden Crown Case, Serviced – $680 shipped

Omega - 168.004 · $680
A 1966 Omega Constellation ref. 168.004 featuring the elegant 'hidden crown' case and powered by the chronometer-rated Caliber 561.

  • Case size: 34.5mm diameter
  • Movement caliber: Caliber 561 automatic chronometer
  • Crown style: hidden-style Omega-signed crown
Posted at
Jun 22, 2025, 11:37 PM
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[WTS] Omega Constellation Chronometer Automatic 1966

Omega Constellation Chronometer Automatic 1966

Omega - 168.004 · $1,199
A Omega Constellation Chronometer Automatic from 1966, featuring an onyx baton indices framed in silver dial and a Swiss Made movement. The watch has a sharp case back engraving and original Omega crystal with etched logo.

  • Condition: Pre-owned, unpolished
  • Case size: 35mm
  • Movement type: Swiss-made automatic, 24 jewel
Posted at
Jun 22, 2025, 11:02 PM
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[WTS] Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475

Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475

Omega - 398.0856 · $475
A rare COSC-certified Omega Constellation Quartz Chronometer from the 1980s, featuring classic styling and high-precision movement.

  • Condition: Excellent vintage condition
  • Movement: Omega Caliber 1343 - COSC-certified quartz
  • Case size: 35mm diameter
  • Material: Stainless steel
Posted at
Jun 22, 2025, 10:28 PM
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[WTS] Omega Constellation Unicorn 🦄 (18k Waffle Dial)

Omega Constellation Unicorn 🦄 (18k Waffle Dial)

Omega · $3,999
a rare early Omega Constellation from France with a unique case design and features such as a waffle dial, shark tooth indexes, and an 18k French case.

  • Case Material: 18k
  • Country Of Origin: France
  • Dial Pattern: Waffle Dial 2-tone
Posted at
Jun 22, 2025, 6:08 PM
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[WTS] Omega Constellation. Automatic. Pie Pan Dial. $1250 only !!

Omega Constellation. Automatic. Pie Pan Dial. $1250 only !!

Omega - Constellation · $1,250
An Omega Constellation watch, automatic and featuring a pie pan dial.

  • Movement: automatic
Posted at
Jun 22, 2025, 8:32 AM
Active
View listing on r/WatchExchange
[WTS] Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475 shipped

Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475 shipped

Omega - 398.0856 · $474
A rare COSC-certified quartz chronometer from the 1980s with classic styling and high-precision movement.

  • Condition: Excellent vintage condition
  • Movement: Omega Caliber 1343 – COSC-certified quartz
  • Case Size: 35mm
  • Material: Stainless steel
Posted at
Jun 22, 2025, 12:15 AM
Active
View listing on r/WatchExchange
[WTS] Omega Day Date. Constellation. Fluted Bezel. Gorgeous Dial. Automatic. 🔥

Omega Day Date. Constellation. Fluted Bezel. Gorgeous Dial. Automatic. 🔥

Omega - Constellation Day Date · $1,150
A Omega Constellation Day Date watch with a fluted bezel and automatic movement is being sold.

  • Movement: automatic
  • Band type: AM strap
Posted at
Jun 21, 2025, 11:10 AM
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[WTS] Omega Constellation

Omega Constellation

Omega - 1512.40 · $1,200
This Omega Constellation is a full set, featuring a quartz precision movement with rhodium-plated finish and a domed, scratch-resistant sapphire crystal.

  • Condition: Mint condition
  • Case Size: 33.5mm diameter
  • Thickness: 8mm
  • Movement Type: quartz
Posted at
Jun 20, 2025, 6:34 PM
Active
View listing on r/WatchExchange