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

Reference 123.20.31.20.55.004

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

About this watch

The Omega Constellation Co-Axial 31 is an exquisite timepiece that embodies the luxurious spirit of Omega while delivering impressive performance. This stunning watch features a round case made from stainless steel adorned with yellow gold claws, a fixed bezel adding modernity to classic elegance. The Mother of Pearl (MOP) dial shimmers and changes color with light, making it a piece of art on your wrist. Coupled with gem-set indexes, this watch is designed to catch eyes and spark conversations. With its automatic movement, 50-hour power reserve, chronometer certification, and Co-Axial escapement, this watch offers remarkable accuracy and longevity. The bracelet feels luxurious against the skin while being sturdy enough for everyday wear. It's adjustable, ensuring a snug fit for various wrist sizes. This watch is perfect for anyone who appreciates the finer things in life.

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Key Features

Omega caliber 8520 automatic movement
Chronometer certified Co-Axial escapement
Stainless steel and yellow gold case
Mother of Pearl (MOP) dial
Gem-set indexes
Water resistance up to 100 meters
Adjustable stainless steel and yellow gold bracelet

Specifications

Brand

Omega

Family

Constellation

Model

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

Reference

123.20.31.20.55.004

Movement

8520

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

31mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

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Condition: Great condition with minor signs of wear
Case diameter: 35mm (without crown)
Lug to lug: 38mm
Lug width: 23mm

Posted at

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Condition: Good condition overall
Movement: Cal. 561
Bracelet: Genuine Omega 518 brick bracelet

Posted at

Dec 12, 2025, 10:03 AM

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Condition: Excellent condition, freshly serviced
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Movement: Caliber 561
Crystal: Acrylic crystal

Posted at

Dec 12, 2025, 8:28 AM

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Condition: VERY GOOD, with some light scratches on bracelet
Case material: stainless steel and yellow gold
Bracelet size: ~7" wrist

Posted at

Dec 12, 2025, 1:09 AM

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1971 Omega Constellation C-Case ref. 168.0056, gold-capped chronometer cal. 1011 – serviced Oct 2025 – $975 shipped

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A 1971 Omega Constellation C-Case chronometer with a gold-capped stainless steel case, solid gold bezel, and warm champagne dial.

Condition: Excellent condition with normal wear from honest use
Caliber: Omega cal. 1011
Movement Service Date: Oct 2025
Case Dimensions: 40mm diameter

Posted at

Dec 11, 2025, 4:07 PM

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[WTS] Omega Constellation super nice condition, complete bracelet. Cal. 751 ref. 168.045. Complete bracelet. Shipping from El Salvador, price inculdes shipping, custom fees. No trades. $1200 - find me on IG as Boldervintage.

Omega Constellation super nice condition, complete bracelet. Cal. 751 ref. 168.045. Complete bracelet. Shipping from El Salvador, price inculdes shipping, custom fees. No trades. $1200 - find me on IG as Boldervintage.

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This Omega Constellation is complete with its original bracelet, offering a stylish and premium accessory for any watch enthusiast.

Condition: super nice condition
Shipping Included: true
Custom Fees Included: true

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Dec 11, 2025, 12:39 PM

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Material: 18K rose gold
Production Year: 1960s

Posted at

Dec 10, 2025, 11:25 AM

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A 1966 Omega Constellation Ref. CD 168.017 features a 14k yellow gold capped stainless steel case and a fantastic dial with a few small scratches on the crystal.

Condition: Good used condition
Year: 1966
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Posted at

Dec 10, 2025, 12:00 AM

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