Omega Constellation Constellation Co-Axial 27 Brushed Yellow Gold Diamond / Champagne MOP

Reference 123.55.27.20.57.002

About this watch

The Omega Constellation Co-Axial 27 Brushed Yellow Gold Diamond / Champagne MOP is a masterpiece that embodies luxury and precision. This stunning timepiece boasts a brushed yellow gold case, champagne mother of pearl dial, and gem-set bezel, creating an irresistible allure. The Omega caliber 8521 movement, with its innovative Co-Axial escapement, ensures exceptional chronometer certification and accuracy. With a water resistance of up to 100 meters and sapphire crystal glass, this watch is both functional and elegant. Its 27mm diameter makes it a perfect fit for those who prefer smaller watches, while the brushed yellow gold bracelet feels luxurious against the skin. This timepiece is a testament to Omega's unrivaled craftsmanship, blending classic aesthetics with cutting-edge technology. With its stunning aesthetics, innovative movement, and robust design, it checks all the boxes for a high-end timepiece.

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Key Features

Omega caliber 8521 self-winding movement
Chronometer certification with Co-Axial escapement
Brushed yellow gold case and champagne mother of pearl dial
Gem-set bezel and indexes for added luxury appeal
Sapphire crystal glass for scratch-free protection
Water resistance up to 100 meters
27mm diameter for a perfect fit

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 27 Brushed Yellow Gold Diamond / Champagne MOP

Reference

123.55.27.20.57.002

Movement

8521

Movement Features

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

Case

Yellow Gold 27mm

Crystal

Sapphire

Water Resistance

100

Current Listings

OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

OMEGA - 123.20.35.20.06.001 · $3,250

A sophisticated timepiece featuring a distinctive stainless steel and yellow gold case with Roman numeral-engraved bezel, grey dial with date window at 3 o'clock, powered by OMEGA's Co-Axial Calibre 2500 movement.

Condition: VERY GOOD (some light scratches on bracelet)
Case materials: stainless steel and yellow gold
Bracelet size adjustment: ~7" wrist
Contents included: box, papers, serial hang tag, spare links

Posted at

Dec 22, 2025, 9:02 AM

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Condition: Great, with a few hairline scratches
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Dial Color: off white

Posted at

Dec 22, 2025, 7:54 AM

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Condition: Great, minor signs of wear
Case size without crown: 35mm
Lug to lug: 38mm
Lug width: 23mm

Posted at

Dec 21, 2025, 7:48 PM

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Omega - 168.0056 · $1,150

A vintage 1971 Omega Constellation Chronometer in the classic C-Case with a clean dial and full original bracelet.

Condition: Excellent condition, with a few scratches on the crystal
Calibre: Cal. 1011 (automatic)
Case Size: 35mm (excluding crown)
Lug Width: 19mm

Posted at

Dec 21, 2025, 9:26 AM

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Condition: Excellent condition, with light wear, scratches and marks
Case material: 18K Gold / Stainless steel
Movement type: Chronometer

Posted at

Dec 21, 2025, 8:20 AM

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Omega constellation 🌌 Gerald Genta

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This Omega Constellation is a vintage watch featuring a 1960s cal 631 movement, accompanied by a rose gold movement. It has a case diameter of approximately 35-36mm.

Crown size: 35-36mm
Movement type: cal 631
Case material: rose gold

Posted at

Dec 20, 2025, 5:53 PM

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