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

PRICE REDUCED! 1966 OMEGA CONSTELLATION

Omega - 168.005 · $2,850

A modern vintage grail, the 1966 Omega Constellation features 'dog leg' lugs and a cross hair dial.

Condition: Unpolished/untouched, minor scratches on the case and caseback
Case diameter: 34mm
Case length: 42.7mm
Dial type: Cross hair dial

Posted at

Mar 1, 2026, 12:12 PM

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Omega Constellation Pie Pan Clean!

Omega - Constellation Pie Pan · $1,800

This is a Omega Constellation Pie Pan watch for sale.

Condition: Very clean

Posted at

Feb 28, 2026, 1:41 AM

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OMEGA CONSTELLATION 123.10.35.20.01.001 - $1699 - DHL

Omega - 123.10.35.20.01.001 · $1,699

A pre-owned Omega Constellation with automatic movement and a 35mm case, serviced in 2026.

Condition: Good (9/10)
Movement: Automatic 2500
Case dimensions: 35mm diameter
Bracelet: Original

Posted at

Feb 26, 2026, 9:23 AM

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Omega Quartz Constellation 18k Gold Plated Coin Case for sale $399 - Shipped

Omega - Quartz Constellation · $399

For sale is an Omega Quartz Constellation in a 18k gold plated case, with an aftermarket Hirsch leather strap.

Condition: New
Case material: 18k gold plated
Case diameter: 36.8mm (including crown)
Lug-to-lug length: 38.6mm

Posted at

Feb 25, 2026, 2:41 PM

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Omega Constellation Ref. 168.005 “Türler” | Good Condition (Serviced) | $1800

Omega - 168.005 · $1,860

The Omega Constellation Ref. 168.005 “Türler” is a vintage watch from the early to mid-1960s with a stainless-steel case and flat silver dial. It features applied markers, dauphine hands, and a framed date window, making it a unique example of Omega's collaboration with the historic Swiss jeweller Türler.

Condition: Good Condition (Serviced)
Case size: 34.5mm
Movement: Caliber 561 (24-jewel chronometer-rated)
Power reserve: 50 hours

Posted at

Feb 24, 2026, 10:46 PM

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1966 OMEGA CONSTELLATION WATCH

Omega - 168.005 · $3,000

A modern vintage grail, 1966 Omega Constellation in UNPOLISHED/UNTOUCHED condition featuring the "dog leg" lugs and a cross-hair dial.

Condition: UNPOLISHED/UNTOUCHED with minor scratches on case and caseback
Case diameter: 34mm
Case length: 42.7mm (lug tip to lug tip)
Movement serial #: 24501601

Posted at

Feb 24, 2026, 7:13 PM

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Omega Constellation Globemaster - $4600 shipped

Omega - Constellation Globemaster · $4,600

This Omega Constellation Globemaster is the first watch to be METAS certified and features a 39mm case size. It comes with additional straps, including a Hirsch leather strap.

Condition: great working condition
Length: 7 inches

Posted at

Feb 24, 2026, 12:48 PM

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