Omega Constellation Constellation Co-Axial 31 Stainless Steel / Red Gold / Brown

Reference 123.20.31.20.13.001

Omega Constellation Co-Axial 31 Stainless Steel / Red Gold / Brown

About this watch

The Omega Constellation Co-Axial 31 is a stunning blend of sophistication and mechanical excellence, featuring a unique combination of red gold and stainless steel that creates a striking contrast. The rich brown dial adds warmth to any outfit, while the round case (31mm diameter) sits comfortably on the wrist. The sapphire glass ensures scratch resistance, and the open case back showcases Omega's precision engineering. At its heart lies the Omega Caliber 8520, an automatic movement renowned for reliability and performance. This chronometer has undergone rigorous testing to ensure accuracy, with a power reserve of 50 hours and a frequency of 25,200 vibrations per hour. The Co-Axial escapement reduces friction between components, improving accuracy and extending the watch's lifespan. The Omega Constellation Co-Axial 31 provides an elegant display of time and date, with Dauphine hands gliding smoothly across the dial. Its water resistance rating of 100 meters makes it perfect for active lifestyles or spontaneous adventures. The understated elegance allows it to transition seamlessly from day to night, complementing any outfit.

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Key Features

Omega Caliber 8520 Automatic Movement
Chronometer Accuracy and 50-Hour Power Reserve
Sapphire Glass Scratch Resistance
Open Case Back for Precision Engineering
Red Gold and Stainless Steel Combination
31mm Diameter Round Case
Water Resistance up to 100m

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 31 Stainless Steel / Red Gold / Brown

Reference

123.20.31.20.13.001

Movement

8520

Movement Features

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

Case

31mm

Dial Color

Brown

Crystal

Sapphire

Water Resistance

100

Current Listings

Omega Constellation 168.017 (1966)

Omega - 168.017 · $900

This Omega Constellation features a beautiful original 'C-Shape' dial and is accompanied by its genuine Omega 518 brick bracelet.

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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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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