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

Reference 123.55.27.20.57.002

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

About this watch

The Omega Constellation Co-Axial 27 Brushed Yellow Gold Diamond / Champagne MOP is a masterpiece that embodies luxury and precision. This stunning timepiece boasts a brushed yellow gold case, champagne mother of pearl dial, and gem-set bezel, creating an irresistible allure. The Omega caliber 8521 movement, with its innovative Co-Axial escapement, ensures exceptional chronometer certification and accuracy. With a water resistance of up to 100 meters and sapphire crystal glass, this watch is both functional and elegant. Its 27mm diameter makes it a perfect fit for those who prefer smaller watches, while the brushed yellow gold bracelet feels luxurious against the skin. This timepiece is a testament to Omega's unrivaled craftsmanship, blending classic aesthetics with cutting-edge technology. With its stunning aesthetics, innovative movement, and robust design, it checks all the boxes for a high-end timepiece.
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Key Features

  • Omega caliber 8521 self-winding movement
  • Chronometer certification with Co-Axial escapement
  • Brushed yellow gold case and champagne mother of pearl dial
  • Gem-set bezel and indexes for added luxury appeal
  • Sapphire crystal glass for scratch-free protection
  • Water resistance up to 100 meters
  • 27mm diameter for a perfect fit

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Yellow Gold Diamond / Champagne MOP
Reference
123.55.27.20.57.002
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Yellow Gold 27mm
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation Ref. 168.003 With “Dog-Leg” Lugs | Good Condition (Serviced) | $2250

Omega Constellation Ref. 168.003 With “Dog-Leg” Lugs | Good Condition (Serviced) | $2250

Omega - 168.003 · $2,250
The Omega Constellation Ref. 168.003 features a beautifully balanced silver dial and highly sought-after dog-leg lug case, measuring 34.5mm in stainless steel with a 40mm lug-to-lug length.

  • Condition: Good, serviced condition
  • Case dimensions: 34.5mm diameter (stainless steel), 40mm lug-to-lug length, 18mm lug width
  • Movement: Omega Caliber 561 (chronometer-certified)
  • Crystal type: Plexiglass crystal (correct to the period)
Posted at
Mar 22, 2026, 12:50 AM
Active
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[WTS] Omega Constellation Manhattan 168.0075 18k Bezel Two Tone Watch 35.5mm - $1300 SHIPPED

Omega Constellation Manhattan 168.0075 18k Bezel Two Tone Watch 35.5mm - $1300 SHIPPED

Omega - 168.0075 · $1,300
Up for sale is this stunning Omega Constellation Manhattan Automatic watch, with a gold champagne dial and a classic vintage dress watch design.

  • Condition: Great mechanical condition
  • Case size: 35.5mm diameter
  • Material: Stainless steel and solid 18k yellow gold
  • Movement: Omega Cal 1111
Posted at
Mar 21, 2026, 8:05 PM
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[WTS] Omega Constellation Kalekadora Mini Ladies 1535.73, Factory Diamonds, W/ Card

Omega Constellation Kalekadora Mini Ladies 1535.73, Factory Diamonds, W/ Card

Omega - 1535.73 · $999
The Omega Constellation Kalekadora Mini is a ladies' watch featuring a pink mother-of-pearl dial and a diamond bezel.

  • Condition: Excellent condition
  • Case size: ~17x23mm
  • Movement: Quartz
  • Dial color: Pink MOP
Posted at
Mar 21, 2026, 12:47 PM
Active
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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
A stunning Omega Constellation 'Pie Pan' with a sunburst dial and caliber 561 automatic movement. The case is sharp and retains its original beveled angles, and the observatory emblem on the case is crisp.

  • Condition: Excellent, unpolished
  • Movement: Caliber 561 Automatic Date
  • Case size: 35mm (excluding crown)
  • Water resistance: Not specified
Posted at
Mar 21, 2026, 11:56 AM
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[WTS] 1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

Omega - 14777 · $950
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

2025 Omega Constellation 41mm Steel Meteorite Dial 131.30.41.21.99.001 Full Set

Omega - 131.30.41.21.99.001 · $6,850
This Omega Constellation features a 41mm stainless steel case, black ceramic bezel with liquid metal Roman numerals, meteorite dial with black PVD hands & markers, and a stainless steel bracelet. The watch is from 2025 and comes in full set condition.

  • 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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[WTS] Omega Constellation Chronometer Quartz with Original Bracelet for sale $599 - Shipped

Omega Constellation Chronometer Quartz with Original Bracelet for sale $599 - Shipped

Omega - Constellation Chronometer Quartz · $599
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
Posted at
Mar 17, 2026, 5:03 PM
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[WTS] Dry or Sweet Manhattan? 2 Omega Constellation Manhattan Day-Dates - The Wallet Friendly Integrated Bracelet Choice!

Dry or Sweet Manhattan? 2 Omega Constellation Manhattan Day-Dates - The Wallet Friendly Integrated Bracelet Choice!

Omega - Constellation Manhattan Day-Date · $995
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

PRICE REDUCED! 1966 OMEGA CONSTELLATION

Omega - 168.005 · $2,500
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
Mar 16, 2026, 6:05 PM
Active
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