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

OMEGA - 167.021 · $1,250

Ultra thin OMEGA Constellation Chronometer certified watch with a small size but good wrist presence.

Condition: Excellent with normal signs of wear and used
Diameter: 33 x 39mm
Thickness: 8mm
Lug width: 19mm

Posted at

Aug 24, 2025, 7:05 AM

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OMEGA Constellation Chronometer certified 168.018 original bracelet, excellent condition

OMEGA - 168.018 · $1,500

This Omega Constellation Chronometer is a certified watch with automatic movement, original silver dial, and stainless steel case in excellent condition.

Condition: excellent
Movement: Cal 564 Automatic
Beats Per Hour: 19800
Jewels: 24

Posted at

Aug 24, 2025, 1:19 AM

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Rare 1959 Omega Constellation Automatic Chronometer Constellation Calendar 14393 | Good Condition (Serviced) | $1800

Omega - 14393 · $1,800

This rare 1959 Omega Constellation Automatic Chronometer Calendar watch features a stainless steel case with a 43mm x 34mm diameter and 11mm thickness, original dial with crosshair design and dauphine hands, and an Omega Caliber 561 automatic movement.

Condition: Good, serviced condition
Case size: 43mm x 34mm
Thickness excluding crown: 11mm
Bracelet length: fits up to 18.5cm (7.2 inches) wrist

Posted at

Aug 23, 2025, 10:43 PM

Active

View listing on r/WatchExchange