Omega Constellation Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars

Reference 123.55.27.20.05.003

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece that marries elegance and cutting-edge technology. This stunning watch features a brushed red gold case, mesmerizing mother-of-pearl dial, and diamond-adorned bezel, making it a statement piece for those who appreciate the finer things in life. With its impeccable Omega caliber 8521 movement boasting Co-Axial escapement and chronometer certification, this watch is not only accurate but also designed to last longer than conventional movements. The self-winding movement features automatic winding in both directions and a power reserve of 50 hours, ensuring the watch keeps running even when taken off for an extended period. With its elegant design and robust features, this watch is perfect for both casual and formal settings. Its water resistance of up to 1000 meters makes it suitable for swimming, snorkeling, or everyday wear. The MOP dial provides a unique aesthetic that changes appearance based on lighting, making each glance at the watch a new experience.
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Key Features

  • Brushed Red Gold Case
  • Mother-of-Pearl Dial with Diamond Adorned Bezel
  • Omega Caliber 8521 Movement with Co-Axial Escapement
  • Chronometer Certification
  • Water Resistance up to 1000 meters
  • 50 Hour Power Reserve

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars
Reference
123.55.27.20.05.003
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
1000

Current Listings

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  • Condition: Excellent condition
  • Case size: ~17x23mm
  • Movement: Quartz
  • Dial color: Pink MOP
Posted at
Mar 21, 2026, 12:47 PM
Active
[WTS] Excellent Omega Steel ‘Pie Pan’ Constellation Dog-Legged Lugs Onyx Markers - Ref. 168.005 - Caliber 561 Automatic Date - From 1966 - $2500 Shipped & Duties Covered

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  • Condition: Excellent, unpolished
  • Movement: Caliber 561 Automatic Date
  • Case size: 35mm (excluding crown)
  • Water resistance: Not specified
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[WTS] 1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

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This 1962 Omega Constellation ref. 14777 features a 37mm stainless-steel case, chronometer-rated cal. 561 movement, and an original champagne dial with crosshair design.

  • Condition: Shows signs of wear and past polish, but still presents well on wrist
  • Case Size: 37mm
  • Diameter Excluding Crown: true
  • Lug Shape: decent
Posted at
Mar 18, 2026, 9:06 AM
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[WTS] 2025 Omega Constellation 41mm Steel Meteorite Dial 131.30.41.21.99.001 Full Set

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  • Condition: Nice preowned condition with some light scratches on the case and bracelet.
  • Case material: stainless steel
  • Bezel material: black ceramic
  • Dial description: meteorite dial
Posted at
Mar 17, 2026, 6:55 PM
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a quartz-powered Omega Constellation with a stainless steel case and original bracelet for sale

  • Bracelet size limit: up to 6.7 inches
  • Case diameter: 25.6mm
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The Omega Constellation Manhattan Day-Date is a fantastic choice for those looking for an integrated bracelet watch. Designed by Carol Didisheim in 1982, this model features a crisp white dial and gold dot markers. The case measures 33MM and has an oversized bezel.

  • Condition: Pre-owned, unpolished with patina
  • Case size: 33MM
  • Bezel size: oversized
  • Bracelet length: stainless: up to 7.5 inches, two tone: just over 7 inches
Posted at
Mar 16, 2026, 9:30 PM
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[WTS] PRICE REDUCED! 1966 OMEGA CONSTELLATION

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A modern vintage grail, a 1966 Omega Constellation featuring 'dog leg' lugs and a cross hair dial in original condition. The silver dial remains in superb condition.

  • Condition: UNPOLISHED/UNTOUCHED with minor scratches on the case and caseback
  • Case Diameter: 34mm
  • Case Length: 42.7mm
  • Movement Type: Automatic wind
Posted at
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[WTS] 60s Omega Constellation Pie Gold Cap Pan Ref. 168.005 | Dog-leg Lugs | All Original | $2450 (SERVICED)

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This vintage Omega Constellation has a design icon 'Pie Pan' dial with faceted edges and bold applied markers, along with twisted dog-leg lugs and chronometer-rated movement.

  • Condition: Serviced, good condition with some light spotting on the dial
  • Movement Rating: Chronometer-rated
  • Case Condition: Very good condition
  • Diameter: 34mm (diameter)
Posted at
Mar 16, 2026, 9:33 AM
Active
[WTS] Omega Constellation Pie Pan Ref. 168.005 | Great Condition (Serviced) | $2450

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Omega - 168.005 · $2,450
The Omega Constellation Pie Pan 168.005 is one of the most iconic dress watches of the 1960s, featuring a stainless steel 34mm case and a silver sunburst dial with applied hour markers.

  • Condition: great condition
  • Case size: 34mm diameter
  • Dial color: silver sunburst
  • Movement type: chronometer-certified automatic
Posted at
Mar 15, 2026, 1:07 AM
Active