Omega Constellation Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold Claws / MOP

Reference 123.20.27.20.55.005

Omega Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold Claws / MOP

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece that embodies the essence of luxury watchmaking. With its flawless design, superior craftsmanship, and reliable movement, it’s a watch that you will cherish for years to come. This stunning timepiece combines elegance and functionality with its petite 27 mm diameter and beautiful blend of brushed stainless steel and yellow gold claws. The Mother of Pearl dial radiates sophistication with its iridescent finish, while the gem-set indexes add a touch of luxury and glamour. The Omega caliber 8520 automatic movement provides reliability and precision, certified to chronometer standards. With a water resistance of 100 meters, this watch is perfect for those who lead an active lifestyle yet want to maintain an air of sophistication. Whether you're headed to a formal event or a casual outing, the Constellation Co-Axial 27 adapts seamlessly, making it suitable for any setting. It's a symbol of elegance, precision, and timeless style that will elevate your wrist game.

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Key Features

Omega Caliber 8520 Automatic Movement
Chronometer Certified for Precision
Water-Resistant up to 100 Meters
Mother of Pearl Dial with Gem-Set Indexes
Brushed Stainless Steel and Yellow Gold Claws
Sapphire Glass for Scratch Resistance

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold Claws / MOP

Reference

123.20.27.20.55.005

Movement

8520

Movement Features

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

Case

27mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

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Case size: 34mm

Posted at

Feb 6, 2026, 10:59 PM

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Condition: Excellent Pre-Owned
Case size: 41MM
Crystal status: replaced
Strap type: OEM rubber strap

Posted at

Feb 6, 2026, 2:50 PM

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a Omega Double Eagle Constellation watch with an open case back chronograph, details to be specified.

Case back type: Open Case Back

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Feb 6, 2026, 2:47 PM

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Condition: All original
Movement caliber: Cal. 561 Automatic
Case material: Stainless Steel
Bracelet type: Original Omega bracelet

Posted at

Feb 6, 2026, 11:22 AM

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Condition: Mint, likely new-old-stock
Movement caliber: 564 Chronometer Automatic Date
Case dimensions: 35mm diameter excluding crown
Lug type: straight lugs

Posted at

Feb 5, 2026, 1:28 PM

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Condition: 9/10
Case size: 35mm
Caliber: 504 chronometer grade

Posted at

Feb 5, 2026, 7:30 AM

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Vintage Omega Constellation 168.029 Day Date

Omega - 168.029 · $949

A vintage Omega Constellation from the late 1960s to early 1970s, designed by Gerald Genta, featuring a sharp, unpolished case and an original sunburst dial.

Case type: cushion (C-case)
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Bezel style: fluted

Posted at

Feb 2, 2026, 11:01 PM

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Omega Constellation Day-Date Quartz Just Serviced c.1980

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This is a classic Omega Constellation with day-date display and slim quartz profile from the 1980s. It has been recently serviced and is running properly.

Condition: Set watch only, with some wear on the case and light marks on the crystal
Era: c.1980
Movement Type: Quartz
Functionality: Day-Date

Posted at

Jan 30, 2026, 8:34 PM

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