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

Reference 123.20.27.20.55.005

About this watch

The Omega Constellation Co-Axial 27 is a masterpiece that embodies the essence of luxury watchmaking. With its flawless design, superior craftsmanship, and reliable movement, it’s a watch that you will cherish for years to come. This stunning timepiece combines elegance and functionality with its petite 27 mm diameter and beautiful blend of brushed stainless steel and yellow gold claws. The Mother of Pearl dial radiates sophistication with its iridescent finish, while the gem-set indexes add a touch of luxury and glamour. The Omega caliber 8520 automatic movement provides reliability and precision, certified to chronometer standards. With a water resistance of 100 meters, this watch is perfect for those who lead an active lifestyle yet want to maintain an air of sophistication. Whether you're headed to a formal event or a casual outing, the Constellation Co-Axial 27 adapts seamlessly, making it suitable for any setting. It's a symbol of elegance, precision, and timeless style that will elevate your wrist game.
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Key Features

  • Omega Caliber 8520 Automatic Movement
  • Chronometer Certified for Precision
  • Water-Resistant up to 100 Meters
  • Mother of Pearl Dial with Gem-Set Indexes
  • Brushed Stainless Steel and Yellow Gold Claws
  • Sapphire Glass for Scratch Resistance

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold Claws / MOP
Reference
123.20.27.20.55.005
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 Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean

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  • Condition: Very good
  • Case Diameter: 33mm
  • Lug To Lug Length: 35.2mm
  • Bracelet Size Range: ~6.75"
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  • Condition: Good condition with wear and aging on the dial
  • Case Width: 34mm
  • Year: 1966
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  • Condition: Excellent with all original parts
  • Case material: Gold Cap case
  • Dial description: Pie-pan dial
  • Dimensions width: 34.5 mm (excluding crown)
Posted at
May 7, 2026, 4:34 PM
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  • Condition: Pre-owned, unpolished, with age-related wear
  • Diameter: 33mm
  • Bracelet size: approximately 7.25 inches
  • Movement type: Swiss quartz movement with quickset date
Posted at
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A 1973 Omega Constellation ref. 168.0057, powered by the automatic chronometer Cal. 1021 with quick-set day-date, and comes on its original Omega brick bracelet ref. 1040.

  • Condition: Very good condition with normal wear from age
  • Movement caliber: Cal. 1021
  • Bracelet size: fits up to approx. 7.25" wrist
Posted at
May 6, 2026, 9:15 AM
Active
Tiltle: [WTS] 1963 Omega Constellation Pie Pan Ref. 168.005 | Caliber 561 | Dog-Leg Lugs | Tritium Dial | All Original | $2200 (SERVICED)

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  • Condition: Excellent vintage condition
  • Movement: Serviced Automatic Chronometer-rated Caliber 561
  • Dial: Original Silver Sunburst Pie Pan dial
  • Case: 34.5mm Gold-capped construction with 42.5mm lug-to-lug and ~11mm thickness
Posted at
May 5, 2026, 9:38 AM
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  • Condition: Light surface wear consistent with age
  • Year: 1959
  • Caliber: Omega 551 (base 550)
  • Jewels: 24
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  • Condition: Excellent condition for a watch >60 years old
  • Movement Type: Calibre 561 Automatic Chronometer
  • Case Size: 37MM (~45MM Lug-to-Lug)
  • Lug Width: 19mm
Posted at
May 3, 2026, 12:49 PM
Active