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

Reference 123.50.27.20.55.002

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece of luxury watchmaking, blending elegance and technological innovation. Its stunning brushed yellow gold case gleams with understated sophistication, while the Mother of Pearl dial adds a touch of opulence. The gem-set indexes twinkle like stars in the night sky, providing a perfect contrast against the white background. With its compact yet bold diameter of 27.00 mm, this watch is perfect for both casual outings and formal events. The round shape is timeless, ensuring that this piece won't go out of style anytime soon. The sapphire glass offers durability and provides a crystal-clear view of the stunning dial. What truly sets the Omega Constellation apart is its impressive movement - the self-winding mechanical Omega caliber 8521 combines traditional watchmaking with modern technology, featuring a Co-Axial escapement that reduces friction between parts for enhanced accuracy and longevity. This timepiece keeps you organized without sacrificing style, equipped with a date function and a water resistance rating of 100 meters. Wearing the Constellation Co-Axial 27 feels like putting on a piece of art, its weighty yet comfortable feel on the wrist is a testament to Omega’s craftsmanship.
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Key Features

  • Omega caliber 8521 self-winding mechanical movement
  • Mother of Pearl dial with gem-set indexes
  • Sapphire glass for scratch-free durability
  • Co-Axial escapement for enhanced accuracy and longevity
  • Date function for organization without sacrificing style
  • Water resistance rating of 100 meters for versatility

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Yellow Gold / MOP Supernova
Reference
123.50.27.20.55.002
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Yellow Gold 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation 34MM | 2022 Full set | Blue dial with factory diamond hour markers and white gold logo, hands, and holders | $4,495 shipped OBO

Omega Constellation 34MM | 2022 Full set | Blue dial with factory diamond hour markers and white gold logo, hands, and holders | $4,495 shipped OBO

This Omega Constellation 34MM features a peacock blue dial with factory diamond hour markers, small seconds subdial, and iconic Constellation star.

  • Condition: Very good
  • Case Diameter: 34mm
Posted at
May 18, 2026, 4:49 PM
Active
[WTS] Omega Constellation 1968 with white gold bezel and 'linen' dial

Omega Constellation 1968 with white gold bezel and 'linen' dial

Omega - 162.027 · $900
A used vintage Omega Constellation featuring an automatic caliber 564 movement with a quickset date, white-gold bezel and 'linen' dial.

  • Condition: 7.5/10, minor scratches on crystal and dial visible under strong light
  • Movement: caliber 564, automatic
  • Case dimensions: 35mm diameter (without crown), 40.5mm diameter (with crown)
  • Thickness: 10mm
Posted at
May 18, 2026, 2:20 PM
Active
[WTS] Omega Constellation Gold Filled Reference 14902 SERVICED

Omega Constellation Gold Filled Reference 14902 SERVICED

Omega - 14902 · $1,350
A 1966 Omega Constellation Pie Pan reference number 14902, in good condition with a gold filled bezel and lugs.

  • Condition: good condition with wear and aging on the dial
  • Case width: 34mm
  • Bezel and lugs material: gold filled
  • Year: 1966
Posted at
May 15, 2026, 2:36 PM
Active
Omega Constellation Globemaster Master Chronometer

Omega Constellation Globemaster Master Chronometer

The Omega Constellation Globemaster 39mm is a versatile dress watch with a dark blue pie pan dial and fluted tungsten carbide bezel. It has goldilocks proportions and a beautiful 3-row bracelet.

  • Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
  • Case dimensions: 39mm x 46.7mm lug to lug x 12.6mm thick
  • Bracelet type: 3-row with slightly curved central links
Posted at
Mar 31, 2025, 10:32 AM
Active