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

Reference 123.55.27.20.57.001

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

About this watch

The Omega Constellation Co-Axial 27 represents a perfect fusion of elegance, functionality, and innovative technology. With its brushed red gold case, gem-set bezel, and brown mother-of-pearl dial, this watch is designed to captivate attention. At the heart of this watch is the Omega caliber 8521 movement, known for its reliability and precision. It features a self-winding mechanism with a Co-Axial escapement, which enhances the watch’s accuracy while reducing friction. The Omega Constellation Co-Axial 27 boasts an impressive water resistance of up to 100 meters, protected by a sapphire crystal. This makes it suitable for swimming and snorkeling, although it’s advisable to avoid diving. With a power reserve of 50 hours and a frequency of 25,200 vibrations per hour, this watch is engineered for performance.
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MSRP: $26,800
Market Price: $11,814

Key Features

  • Brushed red gold case
  • Gem-set bezel with diamonds
  • Brown mother-of-pearl dial
  • Omega caliber 8521 movement
  • Co-Axial escapement
  • Sapphire crystal protection
  • 100m water resistance

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Red Gold / Diamond / Brown MOP
Reference
123.55.27.20.57.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 27mm
Dial Color
Brown
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation Pie Pan Gold Cap 168.005 | All original | $2200 (SERVICED)

Omega Constellation Pie Pan Gold Cap 168.005 | All original | $2200 (SERVICED)

Omega - 168.005 · $2,200
A classic mid-60s Omega Constellation, featuring an iconic pie-pan dial and clean case design.

  • Condition: pre-owned, serviced
  • Movement caliber: Caliber 561
  • Case material: Gold Cap
  • Dial type: pie-pan dial
Posted at
Feb 22, 2026, 10:39 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Pie Pan

Omega Constellation Pie Pan

Omega - Constellation Pie Pan · $1,800
A well-maintained Omega Constellation Pie Pan watch available for sale.

  • Condition: Very clean example!
Posted at
Feb 19, 2026, 6:39 PM
Active
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[WTS](CONUS) Omega Constellation 168.047 - Vintage 1970s - Priced to Sell - Serviced - $750

(CONUS) Omega Constellation 168.047 - Vintage 1970s - Priced to Sell - Serviced - $750

Omega - 168.047 · $750
This Omega Constellation ref 168.047 is a vintage watch from the 1970s with a replaced dial, hands, crystal, and gasket. The case has superficial scratches, but the rest of the watch is in good condition.

  • Condition: Very good
  • Case Size: 40mm x 33mm
  • Movement Calibre: 1001
  • Movement Accuracy: +/- 15 secs a day
Posted at
Feb 19, 2026, 5:35 PM
Active
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[WTS] Omega Steel ‘Pie Pan’ Constellation Dog-Legged Lugs Onyx Markers - Ref. 168.005 - Caliber 561 Automatic Date - From 1966 - $2500 Shipped, Duties Covered

Omega Steel ‘Pie Pan’ Constellation Dog-Legged Lugs Onyx Markers - Ref. 168.005 - Caliber 561 Automatic Date - From 1966 - $2500 Shipped, Duties Covered

Omega - 168.005 · $2,500
This Omega Constellation 'Pie Pan' features a steel case with sunburst dial, automatic movement with date, dog-legged lugs, and inlaid black onyx markers. The watch has been recently serviced and comes paired with a new textured calf-leather strap.

  • Condition: Excellent, well-preserved
  • Case Size: 35mm diameter
  • Movement Caliber: 561 Automatic Date
  • Dial Color: White sunburst
Posted at
Feb 19, 2026, 9:23 AM
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[WTS] Omega Constellation Ref 168.017 - Vintage

Omega Constellation Ref 168.017 - Vintage

Omega - 168.017 · $1,550
1966 Omega Constellation Ref 168.017 with White Pearl Dial Caliber 564, in great condition and fully functional.

  • Condition: GREAT condition
  • Year Of Manufacture: 1966
  • Material: Gold-cap on Stainless Steel
  • Thickness: 200 microns (greater resistance and durability)
Posted at
Feb 19, 2026, 4:30 AM
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[WTS] Omega Constellation Ref 166.063 - Vintage

Omega Constellation Ref 166.063 - Vintage

Omega - 166.063 · $1,250
1960s Omega Constellation in good condition, featuring Caliber 1001 and a gold-cap on stainless steel case.

  • Condition: good condition
  • Year Of Manufacture: 1960s
  • Case Material: Gold-cap on Stainless Steel
  • Water Resistance: 200 microns
Posted at
Feb 17, 2026, 5:17 PM
Active
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[WTS] Omega Constellation Jumbo Ref : 168.001 14K Gold Bezel Condition Good Price : 2000$

Omega Constellation Jumbo Ref : 168.001 14K Gold Bezel Condition Good Price : 2000$

Omega - 168.001 · $2,000
This Omega Constellation Jumbo features a 14K gold bezel and is in good condition, measuring 37mm in size with an original dial powered by the Caliber 561 movement.

  • Condition: Good
  • Material: 14K Gold Bezel
  • Diameter: 37mm
  • Calibre: Caliber 561
Posted at
Feb 17, 2026, 6:00 AM
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[WTS] Omega Constellation Globemaster Silver Dial - Full Kit

Omega Constellation Globemaster Silver Dial - Full Kit

Omega - Constellation Globemaster · $5,500
Up for sale is my Omega Constellation Globemaster in stainless steel with the silver “pie-pan” dial, featuring a 39mm case size, Omega Caliber 8900 movement and METAS Master Chronometer certification.

  • Condition: normal wear for its age
  • Case Size: 39 mm
  • Case Material: stainless steel
  • Dial Color: silver
Posted at
Feb 15, 2026, 6:13 PM
Active
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[WTS] Vintage Omega Constellation unpolished Ref. 168.029 Day-Date $815 shipped

Vintage Omega Constellation unpolished Ref. 168.029 Day-Date $815 shipped

Omega - 168.029 · $815
This is a late 1960s–early 1970s Omega Constellation with a Gerald Genta design. It features an unpolished case and solid 18k white gold fluted bezel.

  • Condition: Pre-owned, serviced
  • Material: 18k white gold
  • Bracelet type: 1040 'brick' bracelet
Posted at
Feb 14, 2026, 9:07 PM
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