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

Reference 123.25.27.20.57.007

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

About this watch

The Omega Constellation Co-Axial 27 is a luxury watch that embodies elegance, precision, and sophistication. Its stunning blend of brushed stainless steel, yellow gold, diamond embellishments, and the captivating Tahiti mother-of-pearl dial makes it a feast for the eyes and a marvel of engineering. This harmonious balance of classic and contemporary design is perfectly proportioned for those who prefer a smaller watch face without sacrificing visibility. The gem-set bezel adds a touch of opulence, making it suitable for both daytime wear and evening events. Underneath its elegant exterior lies the heart of the watch – the Omega caliber 8520 movement, renowned for its reliability and precision. This automatic movement features a chronometer certification, Co-Axial escapement, and a power reserve of 50 hours. With a water resistance rating of 100 meters, this watch is built to withstand life's adventures while maintaining comfort and style. Whether you're heading to a business meeting or a casual brunch with friends, the Omega Constellation Co-Axial 27 complements any outfit beautifully. This timepiece is an investment in quality, craftsmanship, and timeless design that can be passed down through generations.
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Key Features

  • Automatic movement with a 50-hour power reserve
  • Chronometer certification for precision and accuracy
  • Co-Axial escapement reducing friction between moving parts
  • Durable and water-resistant up to 100 meters
  • Dynamic Tahiti mother-of-pearl dial that changes with the light
  • Exceptional craftsmanship and attention to detail
  • Gem-set bezel adding a touch of opulence
  • Small diameter of 27.00 mm for a stylish and comfortable fit

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / Diamond / Tahiti MOP
Reference
123.25.27.20.57.007
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
27mm
Dial Color
Brown
Crystal
Sapphire
Water Resistance
100

Current Listings

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Omega Constellation Day-Date Quartz • c.1980 Movement Rebuilt

Omega - Constellation Day-Date Quartz · $999
A classic Omega Constellation from the 1980s with a day-date display and slim quartz profile, featuring a recent quartz movement overhaul.

  • Condition: Set watch only, case in good vintage condition with wear
  • Movement Status: quartz movement recently overhauled and running properly
  • Case Condition: good vintage condition with wear
Posted at
Mar 14, 2026, 12:40 PM
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[WTS] 1962 Omega 18k Solid Gold Constellation 167005 /6 - Cal 551 - Pie Pan - Dog Legs

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Omega - 167005/6 · $4,750
This exceptional Omega Constellation features a classic 34mm solid gold case with a stunning gold pie-pan dial and an original calibre 551 movement. The watch has been freshly serviced by our watchmaker and is running reliably.

  • Condition: unpolished, sharp condition retaining factory bevels
  • Case size: 34mm diameter
  • Case material: 18k solid yellow gold
  • Dial condition: original, stunning condition
Posted at
Mar 13, 2026, 7:03 PM
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[WTS] Omega Constellation 33mm 18kYG 166052/168033

Omega Constellation 33mm 18kYG 166052/168033

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A Omega Constellation watch with a 33mm case size, available for sale.

  • Case Diameter: 33mm
  • Lug To Lug: 39mm
  • Lug Width: 19mm
Posted at
Mar 13, 2026, 2:51 PM
Active
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[WTS] Omega Constellation Pie Pan Steel Ref. 168.005 | Great Dial, Sharp Case | Dog-leg Lugs | All Original | $2400 (SERVICED)

Omega Constellation Pie Pan Steel Ref. 168.005 | Great Dial, Sharp Case | Dog-leg Lugs | All Original | $2400 (SERVICED)

Omega - 168.005 · $2,400
This vintage Omega Constellation has a 'Pie Pan' dial with faceted edges and bold applied markers, making it a design icon of the mid-century era.

  • Condition: Serviced, excellent condition
  • Case Diameter: 34mm
  • Thickness: ~11mm
  • Lug To Lug: 43.5mm
Posted at
Mar 13, 2026, 12:00 PM
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[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

Excellent 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 is a classic Omega Constellation 'Pie Pan' in steel with a sunburst dial, running the caliber 561 automatic movement.

  • Condition: Excellent, unpolished and untouched with only light honest marks
  • Movement: Caliber 561 automatic date
  • Case size (excluding crown): 35mm
  • Lug style: Dog-legged lugs
Posted at
Mar 12, 2026, 11:20 AM
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[WTS] Mint Omega Gold-Capped Constellation White Sunburst Dial - Ref. 168.018 - Caliber 564 Chronometer Automatic Date - From 1969 - $2300 Shipped + Duties Covered!

Mint Omega Gold-Capped Constellation White Sunburst Dial - Ref. 168.018 - Caliber 564 Chronometer Automatic Date - From 1969 - $2300 Shipped + Duties Covered!

Omega - 168.018 · $2,300
This Omega Constellation features a gold-capped case design with a sunburst dial and thick hour markers. The watch is in exceptional condition with no flaws, retaining its original brushing and textures.

  • Condition: Mint, new-old-stock
  • Movement: Caliber 564 Chronometer Automatic Date
  • Size: 35mm diameter (excluding the crown)
  • Year: 1969
Posted at
Mar 12, 2026, 11:19 AM
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[WTS] 1971 Omega Constellation ref. 168.0056 w/ Cal. 1011 on original Omega brick bracelet – clean original dial – $1,250 shipped

1971 Omega Constellation ref. 168.0056 w/ Cal. 1011 on original Omega brick bracelet – clean original dial – $1,250 shipped

Omega - 168.0056 · $1,250
A vintage Omega Constellation ref. 168.0056 from 1971, powered by the Cal. 1011 automatic movement and featuring a clean original dial, unpolished C-case, and original Omega brick bracelet.

  • Condition: Pre-owned with minor hairline scratches on the case
  • Movement: Omega Cal. 1011 automatic, chronometer-certified
  • Case size: 35mm without crown
  • Lug width: 19mm
Posted at
Mar 12, 2026, 8:42 AM
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[WTS] Omega 2852-11-SC — Constellation Chronometer Arrowhead & Flat-Domed Crosshair Dial (1958) — Cal. 505 (Fresh Service) — Original BoR Bracelet — $2,400 Shipped

Omega 2852-11-SC — Constellation Chronometer Arrowhead & Flat-Domed Crosshair Dial (1958) — Cal. 505 (Fresh Service) — Original BoR Bracelet — $2,400 Shipped

Omega - 2852-11-SC · $2,200
This Omega Constellation ref. 2852-11-SC features a classic early Constellation design with an arrowhead dial and is powered by the chronometer-certified Cal. 505 automatic movement. The watch comes on its original beads-of-rice bracelet.

  • Condition: Pre-owned, with honest signs of wear consistent with age
  • Case Size: 34.5mm x 42mm diameter
  • Thickness: 11.5mm
  • Lug Width: 18mm
Posted at
Mar 11, 2026, 10:17 PM
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[WTS] Omega Constellation Globemaster Annual Calendar Box & Papers

Omega Constellation Globemaster Annual Calendar Box & Papers

Omega - Constellation Globemaster Annual Calendar · $60,000
The Omega Constellation Globemaster Annual Calendar features a sunburst grey dial with applied hour markers and a fluted bezel. It is powered by the Co-Axial Master Chronometer Caliber 8922, delivering outstanding precision and resistance to magnetic fields up to 15,000 gauss.

  • Condition: Great pre-owned condition with light signs of careful wear
  • Movement caliber: Co-Axial Master Chronometer Caliber 8922
  • Bracelet material: stainless steel
Posted at
Mar 9, 2026, 9:39 AM
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