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.
Buy Now on Jomashop
This is an affiliate link
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] REDUCED Omega Constellation Gold Cap ( REF:168.018 ) $750 Shipped.....

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
Active
View listing on r/WatchExchange
[WTS] OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

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
Active
View listing on r/WatchExchange
[WTS] 1971 Omega Constellation C-Case ref. 168.0056, gold-capped chronometer cal. 1011 – serviced Oct 2025 – $975 shipped

1971 Omega Constellation C-Case ref. 168.0056, gold-capped chronometer cal. 1011 – serviced Oct 2025 – $975 shipped

Omega - 168.0056 · $975
A 1971 Omega Constellation C-Case chronometer with a gold-capped stainless steel case, solid gold bezel, and warm champagne dial.

  • Condition: Excellent condition with normal wear from honest use
  • Caliber: Omega cal. 1011
  • Movement Service Date: Oct 2025
  • Case Dimensions: 40mm diameter
Posted at
Dec 11, 2025, 4:07 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation super nice condition, complete bracelet. Cal. 751 ref. 168.045. Complete bracelet. Shipping from El Salvador, price inculdes shipping, custom fees. No trades. $1200 - find me on IG as Boldervintage.

Omega Constellation super nice condition, complete bracelet. Cal. 751 ref. 168.045. Complete bracelet. Shipping from El Salvador, price inculdes shipping, custom fees. No trades. $1200 - find me on IG as Boldervintage.

Omega - 168.045 · $1,200
This Omega Constellation is complete with its original bracelet, offering a stylish and premium accessory for any watch enthusiast.

  • Condition: super nice condition
  • Shipping Included: true
  • Custom Fees Included: true
Posted at
Dec 11, 2025, 12:39 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Chronometer Quartz 198.0126 Cal.1333 Quartz Push Men watch

Omega Constellation Chronometer Quartz 198.0126 Cal.1333 Quartz Push Men watch

Omega - 198.0126 Cal.1333
Posted at
Dec 11, 2025, 3:52 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $8,000
This is a very rare 1960s Omega Constellation Ref. 14393 in 18K rose gold, one of the harder to find variants due to its limited production.

  • Material: 18K rose gold
  • Production Year: 1960s
Posted at
Dec 10, 2025, 11:25 AM
Active
View listing on r/WatchExchange
[WTS] 1960's Omega Constellation Ref. CD 168.017 14k gold capped automatic chronometer

1960's Omega Constellation Ref. CD 168.017 14k gold capped automatic chronometer

Omega - CD 168.017 · $900
A 1966 Omega Constellation Ref. CD 168.017 features a 14k yellow gold capped stainless steel case and a fantastic dial with a few small scratches on the crystal.

  • Condition: Good used condition
  • Year: 1966
  • Case material: 14k yellow gold capped stainless steel
Posted at
Dec 10, 2025, 12:00 AM
Active
View listing on r/WatchExchange
[WTS] omega constellation diamond dial watch $1395

omega constellation diamond dial watch $1395

Omega - null · $1,395
  • Diamond dial: Diamond dial on the Omega Constellation watch
Posted at
Dec 9, 2025, 12:03 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

Omega - Constellation f300Hz (ESA 9162) · $800
This Omega Constellation features a cushion-shaped case with gold-plated plating, a beautiful sunburst champagne dial, and an acrylic crystal. The watch has a thin and comfortable design.

  • Condition: Exceptional for ~50 years old
  • Case Shape: cushion-shaped
  • Case Plating: gold-plated
  • Dial Type: sunburst champagne
Posted at
Dec 8, 2025, 9:05 PM
Active
View listing on r/WatchExchange