Omega Constellation Constellation Co-Axial 27 Brushed Stainless Steel / Black Supernova

Reference 123.10.27.20.51.001

Omega Constellation Co-Axial 27 Brushed Stainless Steel / Black Supernova

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece of luxury watchmaking, combining sophisticated style with cutting-edge technology. The brushed stainless steel case exudes refined elegance, while the black Supernova finish on the dial creates a mesmerizing visual experience under different lighting conditions. This automatic movement boasts a 50-hour power reserve and operates at 25,200 vibrations per hour, ensuring precision and reliability. With chronometer certification and water resistance up to 100 meters, this watch is both stylish and functional. Its compact size of 27 mm makes it perfect for everyday wear, while its versatility allows it to seamlessly transition from formal to casual occasions. The Omega Constellation Co-Axial 27 is more than just a timepiece - it's a legacy that reflects your style and sophistication.

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Key Features

Omega caliber 8520 automatic movement
Chronometer-certified accuracy
100-meter water resistance
Brushed stainless steel case
Black Supernova dial with gem-set indexes
Dauphine hands for excellent readability
50-hour power reserve

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 27 Brushed Stainless Steel / Black Supernova

Reference

123.10.27.20.51.001

Movement

8520

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Stainless Steel 27mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

100

Current Listings

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Condition: normal wear for its age
Case Size: 39 mm
Case Material: stainless steel
Dial Color: silver

Posted at

Feb 15, 2026, 6:13 PM

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Condition: Pre-owned, serviced
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Bracelet type: 1040 'brick' bracelet

Posted at

Feb 14, 2026, 9:07 PM

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Condition: some wear
Case diameter: 35 MM

Posted at

Feb 13, 2026, 11:13 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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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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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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