Omega Constellation Constellation Co-Axial 27 Brushed Stainless Steel / Diamond / White MOP

Reference 123.15.27.20.55.003

Omega Constellation Co-Axial 27 Brushed Stainless Steel / Diamond / White MOP

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece of horology, combining elegance, precision, and style in one stunning package. Founded in 1848, Omega is a name synonymous with quality and innovation, known for their precision and reliability that has graced the wrists of astronauts, world leaders, and even fictional spies. The Constellation series is renowned for its distinctive design and exceptional performance, offering a unique blend of elegance and modernity. With a sleek brushed stainless steel case and luxurious mother-of-pearl dial, this watch is perfect for both formal and casual occasions. At the heart of the Omega 123.15.27.20.55.003 is the automatic Omega caliber 8520 movement, known for its precision and reliability, operating at a frequency of 25,200 vibrations per hour, offering a 50-hour power reserve. With features like hours, minutes, seconds, and date functionality, this watch is built to perform! The Co-Axial escapement reduces friction between components, improving the long-term accuracy of the watch. Plus, being a chronometer means that this watch has passed rigorous tests for precision. The Omega Constellation Co-Axial 27 comes with a stainless steel bracelet that complements the case beautifully, designed for comfort and style. Its elegant design pairs beautifully with a cocktail dress or tailored suit, but it also looks fantastic with simple tee and jeans.

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MSRP: $10,000

Market Price: $3,155

Key Features

Automatic Omega caliber 8520 movement
Chronometer accuracy
100m water resistance
Mother-of-pearl dial
Gem-set bezel
Stainless steel case
Co-Axial escapement

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 27 Brushed Stainless Steel / Diamond / White MOP

Reference

123.15.27.20.55.003

Movement

8520

Movement Features

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

Case

Stainless Steel 27mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

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This is a rare 1960s Omega Constellation in 18K rose gold with a silver pie-pan dial. The watch has a unique character and classic proportions, suitable for both men and women.

Condition: Beautiful condition with strong, well-defined edges and an exceptionally clean period-correct pie-pan silver dial.
Case Size: 34mm
Year: 1960s
Material: 18K rose gold

Posted at

Dec 17, 2025, 5:47 PM

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Condition: Unworn/New
Case size: 39mm
Material: stainless steel
Diameter: 39mm

Posted at

Dec 16, 2025, 12:54 PM

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Condition: Great condition with minor signs of wear
Case diameter: 35mm (without crown)
Lug to lug: 38mm
Lug width: 23mm

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Dec 14, 2025, 9:08 PM

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Omega Constellation 168.017 (1966)

Omega - 168.017 · $900

This Omega Constellation features a beautiful original 'C-Shape' dial and is accompanied by its genuine Omega 518 brick bracelet.

Condition: Good condition overall
Movement: Cal. 561
Bracelet: Genuine Omega 518 brick bracelet

Posted at

Dec 12, 2025, 10:03 AM

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REDUCED Omega Constellation Gold Cap ( REF:168.018 ) $750 Shipped.....

Omega - 168.018 · $750

A beautiful example of the classic Omega Constellation Automatic Chronometer from the late 1960s. It features an original silver sunburst dial with applied gold markers and date at 3 o'clock, a gold-capped stainless steel case (34mm), and an iconic Observatory medallion on the caseback.

Condition: Excellent condition, freshly serviced
Case size: 34mm diameter
Movement: Caliber 561
Crystal: Acrylic crystal

Posted at

Dec 12, 2025, 8:28 AM

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

OMEGA - 123.20.35.20.06.001 · $3,250

The OMEGA Constellation Ref. 123.20.35.20.06.001 is a sophisticated timepiece that celebrates the enduring legacy of OMEGA's iconic Constellation collection, featuring a distinctive stainless steel and yellow gold case with Roman numerals on a polished bezel.

Condition: VERY GOOD, with some light scratches on bracelet
Case material: stainless steel and yellow gold
Bracelet size: ~7" wrist

Posted at

Dec 12, 2025, 1:09 AM

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