Omega Constellation Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova

Reference 123.50.27.20.55.001

Omega Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova

About this watch

The Omega Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova is a masterpiece of luxury watchmaking, boasting a stunning design and innovative technology. Crafted from brushed red gold, this 27mm round case exudes warmth and sophistication, while the mother-of-pearl dial shimmers beautifully under any light. The fixed 12-hour bezel complements the overall aesthetic, and the sapphire crystal provides durability and scratch resistance. At the heart of this timepiece is the Omega Caliber 8521, a self-winding movement featuring the Co-Axial escapement for enhanced precision, stability, and durability. This watch displays hours, minutes, and seconds, with a date function seamlessly integrated into the design. Certified as a chronometer, it meets high standards of precision and reliability. With a water resistance of up to 100 meters, this watch can handle splashes and brief immersions without a hitch.
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Key Features

  • Omega Caliber 8521 self-winding movement
  • Co-Axial escapement for enhanced precision and stability
  • Certified chronometer with high standards of precision and reliability
  • Water resistance up to 100 meters
  • Mother-of-pearl dial with gem-set indexes
  • Brushed red gold case with a 27mm diameter
  • Sapphire crystal for durability and scratch resistance

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova
Reference
123.50.27.20.55.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1966 Omega Constellation ref. 168.004 w/ Cal. 561 – Hidden Crown Case, Serviced – $680 shipped

1966 Omega Constellation ref. 168.004 w/ Cal. 561 – Hidden Crown Case, Serviced – $680 shipped

Omega - 168.004 · $680
A 1966 Omega Constellation ref. 168.004 featuring the elegant 'hidden crown' case and powered by the chronometer-rated Caliber 561.

  • Case size: 34.5mm diameter
  • Movement caliber: Caliber 561 automatic chronometer
  • Crown style: hidden-style Omega-signed crown
Posted at
Jun 22, 2025, 11:37 PM
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[WTS] Omega Constellation Chronometer Automatic 1966

Omega Constellation Chronometer Automatic 1966

Omega - 168.004 · $1,199
A Omega Constellation Chronometer Automatic from 1966, featuring an onyx baton indices framed in silver dial and a Swiss Made movement. The watch has a sharp case back engraving and original Omega crystal with etched logo.

  • Condition: Pre-owned, unpolished
  • Case size: 35mm
  • Movement type: Swiss-made automatic, 24 jewel
Posted at
Jun 22, 2025, 11:02 PM
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[WTS] Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475

Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475

Omega - 398.0856 · $475
A rare COSC-certified Omega Constellation Quartz Chronometer from the 1980s, featuring classic styling and high-precision movement.

  • Condition: Excellent vintage condition
  • Movement: Omega Caliber 1343 - COSC-certified quartz
  • Case size: 35mm diameter
  • Material: Stainless steel
Posted at
Jun 22, 2025, 10:28 PM
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[WTS] Omega Constellation Unicorn 🦄 (18k Waffle Dial)

Omega Constellation Unicorn 🦄 (18k Waffle Dial)

Omega · $3,999
a rare early Omega Constellation from France with a unique case design and features such as a waffle dial, shark tooth indexes, and an 18k French case.

  • Case Material: 18k
  • Country Of Origin: France
  • Dial Pattern: Waffle Dial 2-tone
Posted at
Jun 22, 2025, 6:08 PM
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[WTS] Omega Constellation. Automatic. Pie Pan Dial. $1250 only !!

Omega Constellation. Automatic. Pie Pan Dial. $1250 only !!

Omega - Constellation · $1,250
An Omega Constellation watch, automatic and featuring a pie pan dial.

  • Movement: automatic
Posted at
Jun 22, 2025, 8:32 AM
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[WTS] Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475 shipped

Vintage Omega Constellation Quartz Chronometer Ref. 398.0856 – Rare COSC Model $475 shipped

Omega - 398.0856 · $474
A rare COSC-certified quartz chronometer from the 1980s with classic styling and high-precision movement.

  • Condition: Excellent vintage condition
  • Movement: Omega Caliber 1343 – COSC-certified quartz
  • Case Size: 35mm
  • Material: Stainless steel
Posted at
Jun 22, 2025, 12:15 AM
Active
View listing on r/WatchExchange
[WTS] Omega Day Date. Constellation. Fluted Bezel. Gorgeous Dial. Automatic. 🔥

Omega Day Date. Constellation. Fluted Bezel. Gorgeous Dial. Automatic. 🔥

Omega - Constellation Day Date · $1,150
A Omega Constellation Day Date watch with a fluted bezel and automatic movement is being sold.

  • Movement: automatic
  • Band type: AM strap
Posted at
Jun 21, 2025, 11:10 AM
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[WTS] Omega Constellation

Omega Constellation

Omega - 1512.40 · $1,200
This Omega Constellation is a full set, featuring a quartz precision movement with rhodium-plated finish and a domed, scratch-resistant sapphire crystal.

  • Condition: Mint condition
  • Case Size: 33.5mm diameter
  • Thickness: 8mm
  • Movement Type: quartz
Posted at
Jun 20, 2025, 6:34 PM
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[WTS] Vintage Omega Constellation Pie-Pan

Vintage Omega Constellation Pie-Pan

Omega - Constellation 'Pie Pan' caliber 551 · $1,250
A vintage Omega Constellation 'Pie Pan' watch in beautiful condition, featuring a seemingly original case and sharp lines. The watch is working well and comes with a nearly new leather strap.

  • Condition: Excellent condition with minor micro scratches, one noticeable scratch on the case back
  • Case size: 37mm diameter
  • Water resistance: not specified
Posted at
Jun 20, 2025, 10:36 AM
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