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

Reference 123.20.27.20.57.002

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

About this watch

The Omega Constellation Co-Axial 27 is a stunning luxury watch that embodies the spirit of elegance and sophistication. With its harmonious blend of brushed stainless steel and yellow gold, this watch captures attention without screaming for it. The champagne mother of pearl (MOP) dial adds a touch of luxury, making it perfect for both casual and formal occasions. The Omega caliber 8520 automatic movement boasts precision and reliability, featuring a 50-hour power reserve and accurate timekeeping thanks to its frequency of 25,200 vibrations per hour. This timepiece is equipped with hours, minutes, seconds, and a date function, making it an excellent addition to any wardrobe. Whether you're in a boardroom or at a gala, the Constellation Co-Axial 27 fits seamlessly into any environment. With its gem-set indexes and sapphire glass, this watch is not just a pretty face but also durable and water-resistant up to 100 meters. Wearing the Omega Constellation Co-Axial 27 is an experience in itself, with its weight feeling substantial yet comfortable on the wrist. The smooth movements of the hands across the dial are mesmerizing, almost like a gentle dance. This watch adapts to your style, making it perfect for both casual and formal attire.
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Key Features

  • Omega caliber 8520 automatic movement
  • 50-hour power reserve
  • Sapphire glass for scratch protection
  • Water resistance up to 100 meters
  • Gem-set indexes for added luxury
  • Dauphine hands for classic touch
  • Champagne mother of pearl dial

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / Champagne MOP
Reference
123.20.27.20.57.002
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
27mm
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] OMEGA Constellations Chronometer Certified 168.018 original bracelet, excellent condition

OMEGA Constellations Chronometer Certified 168.018 original bracelet, excellent condition

OMEGA - 168.018 · $1,500
This Omega Constellation Chronometer is a certified timepiece featuring an automatic Cal 564 movement and a stainless steel case with a silver dial.

  • Condition: excellent
  • Case dimensions: 35 x 40mm, thickness 12mm, 19mm lug width
  • Movement: Cal 564 Automatic 24 Jewels 19800 beats per hour
  • Accuracy: +/-5s per day
Posted at
Feb 9, 2026, 10:08 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA Constellations Chronometer certified 167.021, serviced

OMEGA Constellations Chronometer certified 167.021, serviced

OMEGA - 167.021 · $1,300
A rare Omega Constellation Chronometer model 167.021, officially certified and ultra thin, featuring a silver dial and automatic movement.

  • Condition: Used with normal signs of wear and use
  • Case dimensions: 33 x 39mm, 8mm thickness, 19mm lug width
  • Movement type: Cal 712 Automatic, 24 Jewels, 19800 beats per hour
  • Crystal condition: Acrylic Crystal with no scratches and Omega signed in the center
Posted at
Feb 8, 2026, 8:50 AM
Active
View listing on r/WatchExchange
[WTS] 10k Gold Filled Omega Constellation. STEAL DEAL

10k Gold Filled Omega Constellation. STEAL DEAL

Omega - Constellation · $555
This vintage Omega Constellation is a mid-century design in a classic 34mm case that exudes Swiss elegance.

  • Case size: 34mm
Posted at
Feb 6, 2026, 10:59 PM
Active
View listing on r/WatchExchange
[WTS] Omega Double Eagle Constellation | Open Case Back Chronograph | Reference 1819.51.91

Omega Double Eagle Constellation | Open Case Back Chronograph | Reference 1819.51.91

Omega - 1819.51.91 · $4,900
This Omega Double Eagle Constellation features an open case back showcasing the movement, with a 41MM case size and powered by Co-Axial calibre 3313.

  • Condition: Excellent Pre-Owned
  • Case size: 41MM
  • Crystal status: replaced
  • Strap type: OEM rubber strap
Posted at
Feb 6, 2026, 2:50 PM
Active
View listing on r/WatchExchange
[WTS] Omega Double Eagle Constellation | Open Case Back Chronograph | Reference 1819.51.91

Omega Double Eagle Constellation | Open Case Back Chronograph | Reference 1819.51.91

Omega - 1819.51.91
a Omega Double Eagle Constellation watch with an open case back chronograph, details to be specified.

  • Case back type: Open Case Back
Posted at
Feb 6, 2026, 2:47 PM
Active
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[WTS] Omega Constellation Pie Pan 168.005 w/bracelet | All original | $2500 shipped (SERVICED)

Omega Constellation Pie Pan 168.005 w/bracelet | All original | $2500 shipped (SERVICED)

Omega - 168.005 · $2,500
A classic mid-60s Constellation with an iconic pie-pan dial and stainless steel case, powered by Omega's chronometer-rated Caliber 561.

  • Condition: All original
  • Movement caliber: Cal. 561 Automatic
  • Case material: Stainless Steel
  • Bracelet type: Original Omega bracelet
Posted at
Feb 6, 2026, 11:22 AM
Active
View listing on r/WatchExchange
Omega Constellation Globemaster Master Chronometer

Omega Constellation Globemaster Master Chronometer

Omega - 130.30.39.21.03.001 · $4,650
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
View listing on RolexForums