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

Reference 123.20.27.20.55.002

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 Chronometer Certified 168.018 with original bracelet

OMEGA Constellation Chronometer Certified 168.018 with original bracelet

OMEGA - 168.018 $1,500
This Omega Constellation Chronometer is a certified timepiece with an automatic Cal 564 movement and a stainless steel case measuring 35 x 40mm in diameter.

  • Condition: excellent condition
  • Movement type: Cal 564 Automatic
  • Jewels: 24
  • Beats per hour: 19800
Posted at
Sep 2, 2025, 9:12 PM
Active
[WTS] [USA] omega constellation 41mm

[USA] omega constellation 41mm

Omega - Constellation $3,500
A 41mm Omega Constellation is being sold for $3500 OBO.

  • Size: 41mm
Posted at
Sep 2, 2025, 4:56 PM
Active
[WTS] Ultra thin OMEGA Constellation Chronometer Certified 167.021 with extra bracelet

Ultra thin OMEGA Constellation Chronometer Certified 167.021 with extra bracelet

OMEGA - 167.021 $1,300
This Omega Constellation Chronometer is a rare ultra-thin model certified by the brand. It features an automatic movement with 24 jewels and a silver dial with original handset.

  • Condition: Excellent with normal signs of wear and use
  • Case dimensions: 33 x 39mm, thickness 8mm, 19mm lug width
  • Crystal condition: Acrylic crystal is free from scratches
  • Movement specs: Cal 712 Automatic 24 Jewels 19800 beats per hour
Posted at
Sep 2, 2025, 10:18 AM
Active
[WTS] 1963 Omega Constellation (Ref. 167.005)

1963 Omega Constellation (Ref. 167.005)

Omega - 167.005 $1,999
A 1963 Omega Constellation watch featuring a classic design, chronometer-rated movement, and distinctive Geneva Observatory caseback.

  • Condition: Excellent
  • Movement: 551
  • Case material: stainless steel
  • Size: 34mm
Posted at
Sep 1, 2025, 8:43 AM
Active
[WTS] Omega constellation 馃寣 perpetual calendar

Omega constellation 馃寣 perpetual calendar

This is a quartz version of the Omega Constellation Perpetual Date, featuring a black and silver design with a rare blue dial. The watch has been serviced in 2023 and comes with an 18k omega stamp and clean sapphire crystal.

  • Condition: Excellent
  • Diameter: 35.5mm
  • Movement Type: Quartz
  • Crystal Type: Sapphire
Posted at
Aug 31, 2025, 6:16 PM
Active