Omega Constellation Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova

Reference 123.55.31.20.55.006

About this watch

The Omega Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova is a masterpiece of luxury watchmaking, blending exquisite design with cutting-edge technology. Its mother of pearl dial shines with an ethereal glow, while the gem-set indexes add a touch of sparkle that catches the eye. The round case, crafted from 18 Ct red gold, exudes luxury and sophistication, making it a statement piece for any occasion. At its core lies the Omega caliber 8421, an automatic movement featuring the Co-Axial escapement, which enhances accuracy and reduces friction, leading to better performance over time. With a power reserve of 50 hours and a frequency of 25,200 vibrations per hour, this watch is built for performance. It's a chronometer, meaning it has been tested and certified for superior precision—a crucial factor for any serious watch enthusiast. The Constellation Co-Axial 31 also boasts an impressive water resistance of up to 100 meters, making it perfect for swimming or engaging in water sports without worrying about damaging it. Whether you're at a gala or a casual brunch, this watch is sure to turn heads.

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Key Features

Omega caliber 8421 automatic movement
Co-Axial escapement for enhanced accuracy and reduced friction
Chronometer tested and certified for superior precision
Up to 100 meters water resistance
31 mm diameter, suitable for smaller and larger wrists
Red gold case with gem-set bezel and mother of pearl dial
Dauphine hands for easy reading of the time

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 31 Red Gold / Snow / Diamond Supernova

Reference

123.55.31.20.55.006

Movement

8421

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

Red Gold 31mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

Omega Constellation 🌌 C shaped Gerald Genta design.

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This is a 1960s Omega Constellation with the C shaped Gerald Genta design. It features a reference number of 168017 and a leather strap.

Condition: Runs good, previously a safe queen
Case size: 35.5mm
Thickness: 19mm

Posted at

Feb 13, 2026, 4:11 PM

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Omega constellation chronometer ref 198.0104 & Omega Polaris Ref 396.1022.

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The seller is listing two vintage Omega watches: a Constellation chronometer quartz (ref 198.0141) and an Omega Polaris (ref 396.1022). Both watches are from the 1980s, feature sapphire crystals, and have strap sizes up to 7.5 inches.

Condition: very close to perfect
Case size: 29mm without crown x 33mm
Movement: Omega Cal: 1431 Quartz
Crystal type: Sapphire Crystal

Posted at

Feb 12, 2026, 8:29 AM

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Omega Constellation Jumbo 14777-61SC 37mm | Good Condition (Serviced) | $1600

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The Omega Constellation Jumbo Ref. 14777-61SC is a vintage watch with a clean, flat dial aesthetic and a modern wrist presence. It features a stainless steel case with beautifully curved lugs and a sharp bezel, and powers Omega's Caliber 561 chronometer-rated automatic movement.

Condition: Good (serviced)
Case diameter: 37mm
Lug width: 19mm
Movement: Caliber 561 (chronometer-rated automatic movement with date complication)

Posted at

Feb 10, 2026, 11:15 PM

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OMEGA Constellations Chronometer Certified 168.018 original bracelet, excellent condition

OMEGA - 168.018 · $1,500

This Omega Constellation Chronometer is a certified timepiece featuring an automatic Cal 564 movement and a stainless steel case with a silver dial.

Condition: excellent
Case dimensions: 35 x 40mm, thickness 12mm, 19mm lug width
Movement: Cal 564 Automatic 24 Jewels 19800 beats per hour
Accuracy: +/-5s per day

Posted at

Feb 9, 2026, 10:08 PM

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OMEGA Constellations Chronometer certified 167.021, serviced

OMEGA - 167.021 · $1,300

A rare Omega Constellation Chronometer model 167.021, officially certified and ultra thin, featuring a silver dial and automatic movement.

Condition: Used with normal signs of wear and use
Case dimensions: 33 x 39mm, 8mm thickness, 19mm lug width
Movement type: Cal 712 Automatic, 24 Jewels, 19800 beats per hour
Crystal condition: Acrylic Crystal with no scratches and Omega signed in the center

Posted at

Feb 8, 2026, 8:50 AM

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