Omega Constellation Constellation Co-Axial 31 Yellow Gold / Champagne

Reference 123.50.31.20.08.001

About this watch

The Omega Constellation Co-Axial 31 Yellow Gold / Champagne is a luxurious timepiece that combines elegance, precision, and history. Its stunning aesthetics and high-performance mechanics make it a statement piece. The watch features a yellow gold casing, champagne-colored dial, and Dauphine hands, protected by scratch-resistant sapphire glass. At its core lies the Omega caliber 8521, a marvel of modern engineering with a Co-Axial escapement design that enhances precision and stability. This self-winding movement is equipped with a free-sprung balance system and silicon balance-spring, ensuring durability and reliability. With a power reserve of 50 hours and chronometer certification, this watch meets stringent precision standards, keeping time accurately. Its water resistance rating of 100 meters makes it suitable for daily wear, from casual outings to formal events. This Omega model stands out in the luxury segment with its unique Co-Axial escapement and timeless design.

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Key Features

Yellow gold casing
Champagne-colored dial
Dauphine hands
Scratch-resistant sapphire glass
Omega caliber 8521 movement
Co-Axial escapement design
Free-sprung balance system
Silicon balance-spring

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 31 Yellow Gold / Champagne

Reference

123.50.31.20.08.001

Movement

8521

Movement Features

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

Case

Yellow Gold 31mm

Crystal

Sapphire

Water Resistance

100

Current Listings

REDUCED Omega Constellation Gold Cap ( REF:168.018 ) $750 Shipped.....

Omega - 168.018 · $750

A beautiful example of the classic Omega Constellation Automatic Chronometer from the late 1960s. It features an original silver sunburst dial with applied gold markers and date at 3 o'clock, a gold-capped stainless steel case (34mm), and an iconic Observatory medallion on the caseback.

Condition: Excellent condition, freshly serviced
Case size: 34mm diameter
Movement: Caliber 561
Crystal: Acrylic crystal

Posted at

Dec 12, 2025, 8:28 AM

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OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

OMEGA - 123.20.35.20.06.001 · $3,250

The OMEGA Constellation Ref. 123.20.35.20.06.001 is a sophisticated timepiece that celebrates the enduring legacy of OMEGA's iconic Constellation collection, featuring a distinctive stainless steel and yellow gold case with Roman numerals on a polished bezel.

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

Omega - 168.0056 · $975

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.

Omega - 168.045 · $1,200

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

Posted at

Dec 11, 2025, 12:39 PM

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Omega Constellation Chronometer Quartz 198.0126 Cal.1333 Quartz Push Men watch

Omega - 198.0126 Cal.1333

Posted at

Dec 11, 2025, 3:52 AM

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Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $8,000

This is a very rare 1960s Omega Constellation Ref. 14393 in 18K rose gold, one of the harder to find variants due to its limited production.

Material: 18K rose gold
Production Year: 1960s

Posted at

Dec 10, 2025, 11:25 AM

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1960's Omega Constellation Ref. CD 168.017 14k gold capped automatic chronometer

Omega - CD 168.017 · $900

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
Case material: 14k yellow gold capped stainless steel

Posted at

Dec 10, 2025, 12:00 AM

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omega constellation diamond dial watch $1395

Omega - null · $1,395

Diamond dial: Diamond dial on the Omega Constellation watch

Posted at

Dec 9, 2025, 12:03 PM

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Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

Omega - Constellation f300Hz (ESA 9162) · $800

This Omega Constellation features a cushion-shaped case with gold-plated plating, a beautiful sunburst champagne dial, and an acrylic crystal. The watch has a thin and comfortable design.

Condition: Exceptional for ~50 years old
Case Shape: cushion-shaped
Case Plating: gold-plated
Dial Type: sunburst champagne

Posted at

Dec 8, 2025, 9:05 PM

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