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

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Condition: Very good
Case Diameter: 34mm

Posted at

May 18, 2026, 4:49 PM

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A used vintage Omega Constellation featuring an automatic caliber 564 movement with a quickset date, white-gold bezel and 'linen' dial.

Condition: 7.5/10, minor scratches on crystal and dial visible under strong light
Movement: caliber 564, automatic
Case dimensions: 35mm diameter (without crown), 40.5mm diameter (with crown)
Thickness: 10mm

Posted at

May 18, 2026, 2:20 PM

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Omega Constellation Gold Filled Reference 14902 SERVICED

Omega - 14902 · $1,350

A 1966 Omega Constellation Pie Pan reference number 14902, in good condition with a gold filled bezel and lugs.

Condition: good condition with wear and aging on the dial
Case width: 34mm
Bezel and lugs material: gold filled
Year: 1966

Posted at

May 15, 2026, 2:36 PM

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The Omega Constellation Globemaster 39mm is a versatile dress watch with a dark blue pie pan dial and fluted tungsten carbide bezel. It has goldilocks proportions and a beautiful 3-row bracelet.

Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
Case dimensions: 39mm x 46.7mm lug to lug x 12.6mm thick
Bracelet type: 3-row with slightly curved central links

Posted at

Mar 31, 2025, 10:32 AM

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