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 Chronometer Automatic 1966

Omega - 168.004 · $1,199

A 1966 Omega Constellation Chronometer Automatic with a 35mm case, featuring an onyx baton indices dial and a Swiss-made automatic movement.

Condition: Pre-owned, unpolished with signs of careful use
Case size: 35mm
Diameter: 35mm

Posted at

Jul 2, 2025, 5:36 PM

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Omega Constellation Day Date 53872640 $1100

Omega - Constellation Day Date 53872640 · $1,100

Price: $1100

Posted at

Jul 2, 2025, 5:05 PM

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Omega Constellation 2 tone, 34mm, $799!

Omega - Constellation · $799

This Omega Constellation is a two-tone, 34mm watch from the 1990s with an 18k gold case and quartz movement. The dial is extremely clean and has minor scratches on the bezel.

Condition: very good
Case material: 18k gold
Movement type: quartz
Case size: 34mm

Posted at

Jul 1, 2025, 10:02 PM

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omega constellation ref 14381-2sc 14k gold on Bonklip 9k gold bracelet

Omega - 14381-2sc · $3,100.003

This is a 1959 Omega 14k solid gold wristwatch with caliber 551 and serial number 17.xxxxxx. It has been serviced and runs perfectly.

Condition: Like new, serviced in July 2019
Bracelet material: 9k gold
Bracelet weight: 30.3g
Caliber: 551

Posted at

Jun 30, 2025, 7:59 PM

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View listing on WatchUseek

1969 Omega Constellation Day-Date ref. 168.016 w/ Cal. 751 – Serviced – $575 shipped

Omega - 168.016 · $575

A classic 1969 Omega Constellation Day-Date ref. 168.016 powered by the chronometer-rated Cal. 751 movement, featuring a stainless steel case and an original signed crown.

Movement: Omega Caliber 751 automatic chronometer
Crystal: replacement plexiglass
Crown: correct original signed crown

Posted at

Jun 30, 2025, 11:55 AM

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View listing on r/WatchExchange