Omega Constellation Constellation Co-Axial 31 Yellow Gold / Champagne

Reference 123.50.31.20.08.001

About this watch

The Omega Constellation Co-Axial 31 Yellow Gold / Champagne is a luxurious timepiece that combines elegance, precision, and history. Its stunning aesthetics and high-performance mechanics make it a statement piece. The watch features a yellow gold casing, champagne-colored dial, and Dauphine hands, protected by scratch-resistant sapphire glass. At its core lies the Omega caliber 8521, a marvel of modern engineering with a Co-Axial escapement design that enhances precision and stability. This self-winding movement is equipped with a free-sprung balance system and silicon balance-spring, ensuring durability and reliability. With a power reserve of 50 hours and chronometer certification, this watch meets stringent precision standards, keeping time accurately. Its water resistance rating of 100 meters makes it suitable for daily wear, from casual outings to formal events. This Omega model stands out in the luxury segment with its unique Co-Axial escapement and timeless design.
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Key Features

  • Yellow gold casing
  • Champagne-colored dial
  • Dauphine hands
  • Scratch-resistant sapphire glass
  • Omega caliber 8521 movement
  • Co-Axial escapement design
  • Free-sprung balance system
  • Silicon balance-spring

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Yellow Gold / Champagne
Reference
123.50.31.20.08.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Yellow Gold 31mm
Crystal
Sapphire
Water Resistance
100

Current Listings

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The Omega Constellation Pie Pan Ref. 168.005 is a quintessential 1960s dress watch that embodies Omega’s pursuit of precision and elegance during the golden age of Swiss watchmaking.

  • Condition: Great condition, serviced
  • Case size: 34.5mm diameter
  • Movement type: Automatic
  • Jewels: 24
Posted at
Jan 10, 2026, 10:00 PM
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  • Condition: Good overall with light, honest wear
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  • Diameter: 41mm
Posted at
Jan 10, 2026, 9:22 PM
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  • Gerald genta design: true
Posted at
Jan 10, 2026, 5:07 PM
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[WTS] Omega Constellation Globemaster – 39mm Blue Pie Pan Dial – Set

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  • Case size: 39mm
  • Diameter: 39mm
Posted at
Jan 9, 2026, 7:58 PM
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[WTS] Omega Constellation C Shape - 168.017 Circa 1969 only for 775$ Shipped 🚢

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A 1969 Omega Constellation C Shape reference 168.017 featuring a stainless steel case and automatic movement calibre 564.

  • Condition: Great, minor hairline scratches
  • Case size: 35mm diameter
  • Movement: Calibre 564 automatic
Posted at
Jan 9, 2026, 8:05 AM
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[WTS] Omega Constellation Crosshair Dial 14381-11 SC | Great Original Condition (Serviced) | $1750

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Omega - 14381-11 SC · $1,810
The Omega Constellation Ref. 14381-11 SC is a fine example from one of Omega’s most respected design periods. Produced around 1959 to 1961, this model represents the golden age of mid-century Swiss watchmaking.

  • Condition: Great original condition, recently serviced
  • Case size: 34.5 mm × 43.5 mm
  • Dial condition: clean and crisp, light patina dot on the dial
  • Movement type: chronometer-certified automatic
Posted at
Jan 7, 2026, 10:27 PM
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[WTS] [WW] Omega Omega Constellation Ladies 24mm MOP

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The Omega Constellation Ladies watch features a stainless steel case with a mother-of-pearl dial. It has a quartz movement for accurate timekeeping and comes with its original box and papers.

  • Condition: Good - shows signs of wear (scratches on bracelet and bezel, also there are dents on the back case)
  • Case Material: Stainless Steel
  • Movement: Quartz
  • Bracelet Length: 180mm (approx.)
Posted at
Jan 6, 2026, 3:13 PM
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