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

Reference 123.20.27.20.55.002

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

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece of horology, boasting exquisite craftsmanship, high functionality, and stunning aesthetics. Its combination of brushed stainless steel and yellow gold creates a striking contrast that exudes luxury. The round shape is classic, with a 27 mm diameter perfect for those who prefer a more dainty watch without sacrificing visibility. The Mother of Pearl (MOP) Supernova dial is a showstopper, shimmering with iridescence that changes hue with the light. Gem-set indexes add a sparkling touch that perfectly complements the luxurious design. With its automatic Omega Caliber 8520 movement, this watch delivers precision and reliability, featuring a power reserve of 50 hours and a frequency of 25,200 vibrations per hour. Certified as a chronometer by the COSC, it's a trusted friend who always keeps you on time. The watch boasts a water resistance of up to 100 meters, making it perfect for casual water activities. Its comfortable bracelet is crafted from brushed stainless steel and yellow gold, providing a snug yet comfortable fit. With its stunning design and reliable movement, the Omega Constellation Co-Axial 27 is a timeless piece that blends tradition with modernity.
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MSRP: $8,600
Market Price: $4,133

Key Features

  • Omega Caliber 8520 Automatic Movement
  • Stainless Steel & Yellow Gold Case Material
  • Sapphire Crystal Glass
  • Gem-Set Indexes for Added Luxury
  • Water Resistance up to 100 meters
  • Certified Chronometer by COSC

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / MOP Supernova
Reference
123.20.27.20.55.002
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation C Shape - 168.017 Circa 1969 only for 775$ Shipped 🚢

Omega Constellation C Shape - 168.017 Circa 1969 only for 775$ Shipped 🚢

Omega - 168.017 · $775
Up for sale is an Omega Constellation C Shape reference 168.017 from 1969, featuring a stainless steel case with a 35mm diameter and an off-white dial.

  • Condition: great, with a few hairline scratches
  • Case Size: 35mm diameter
  • Movement: Calibre 564, automatic
Posted at
Jan 18, 2026, 7:52 AM
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[WTS] Omega Constellation 🌌 blue 1990s 35.5mm 🔥

Omega Constellation 🌌 blue 1990s 35.5mm 🔥

Omega - Constellation Perpetual Date · $1,150
This Omega Constellation is a quartz perpetual date watch from the early 1990s. It features an 18k omega stamp and a blue sunburst dial that appears to shift colors depending on the angle of the light.

  • Movement type: quartz
  • Year of production: early 1990s
  • Case diameter: 35.5mm
Posted at
Jan 17, 2026, 7:09 PM
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[WTS] 1971 Omega Constellation ref. 168.059 w/ Cal. 1011 – Green fumé “spider” dial – $795 shipped

1971 Omega Constellation ref. 168.059 w/ Cal. 1011 – Green fumé “spider” dial – $795 shipped

Omega - 168.059 · $795
  • Year: 1971
  • Caliber: Cal. 1011
Posted at
Jan 15, 2026, 11:05 AM
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[WTS] Timeless Gold Elegance – Omega Constellation 10k Gold-Filled ✨

Timeless Gold Elegance – Omega Constellation 10k Gold-Filled ✨

Omega - Constellation · $699
This Omega Constellation in 10k gold-filled is a classic watch with understated luxury and timeless style, perfect for everyday wear.

  • Condition: Pre-owned with new battery
  • Case Size: 34mm diameter
  • Material: 10k gold-filled
  • Strap: High-quality AM strap
Posted at
Jan 14, 2026, 1:49 AM
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[WTS] Omega Constellation linen dial ref 168017 cal 564

Omega Constellation linen dial ref 168017 cal 564

Omega - 168017 · $4,000
This Omega Constellation features a gold linen dial and comes equipped with an automatic movement powered by caliber 564. It's ready to be worn with its new generic strap and buckle.

  • Condition: Pre-owned, requires servicing
  • Movement: caliber 564
  • Functions work: yes all functions are working
Posted at
Jan 12, 2026, 12:05 PM
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[WTS] 1958 Omega Constellation ‘Pie Pan’ Arrowhead Ref. 2852-1SC | Good Condition (Serviced) | $2850

1958 Omega Constellation ‘Pie Pan’ Arrowhead Ref. 2852-1SC | Good Condition (Serviced) | $2850

Omega - 2852-1SC · $2,810
The Omega Constellation 'Pie Pan' Arrowhead Ref. 2852-1SC is one of the most sought-after and distinctive Constellation references from the mid-1950s. This particular example features the iconic 'Pie-Pan' dial with large applied arrowhead hour markers, often referred to by collectors as 'Arrowhead' indices.

  • Condition: Good, serviced
  • Case diameter: 34.5mm (excluding crown)
  • Lug-to-lug distance: 43.5mm
  • Thickness: 11mm
Posted at
Jan 12, 2026, 10:11 AM
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[WTS] Omega Constellation Pie Pan Ref. 168.005 with Original BoR Bracelet | Great Condition (Serviced) | $2700

Omega Constellation Pie Pan Ref. 168.005 with Original BoR Bracelet | Great Condition (Serviced) | $2700

Omega - 168.005 · $2,700
The Omega Constellation Pie Pan Ref. 168.005 is a quintessential 1960s dress watch that embodies Omega’s pursuit of precision and elegance during the golden age of Swiss watchmaking.

  • Condition: Great condition, serviced
  • Case size: 34.5mm diameter
  • Movement type: Automatic
  • Jewels: 24
Posted at
Jan 10, 2026, 10:00 PM
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[WTS] Omega Constellation Double Eagle Chronograph – Ref. 121.92.41.50.01.001 – 41mm – Complete Set – $2,599 Shipped

Omega Constellation Double Eagle Chronograph – Ref. 121.92.41.50.01.001 – 41mm – Complete Set – $2,599 Shipped

Omega - 121.92.41.50.01.001 · $2,599
The Omega Constellation Double Eagle Chronograph features a 41mm titanium case and carbon fiber dial with integrated chronograph layout powered by Omega's co-axial chronometer movement.

  • Condition: Good overall with light, honest wear
  • Case material: titanium
  • Diameter: 41mm
Posted at
Jan 10, 2026, 9:22 PM
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[WTS] Omega Constellation 🌌 Gerald Genta

Omega Constellation 🌌 Gerald Genta

Omega - Constellation · $850
This Omega Constellation is a classic watch from the Gerald Genta design era, known for its iconic style. It's a late 60s model that runs great and has been purchased at an estate sale.

  • Gerald genta design: true
Posted at
Jan 10, 2026, 5:07 PM
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