Omega Constellation Constellation Co-Axial 31 Red Gold / Brown

Reference 123.50.31.20.13.001

About this watch

The Omega Constellation Co-Axial 31 Red Gold / Brown is a masterpiece of horological excellence, embodying the spirit of Omega with its robust movement, luxurious materials, and timeless design. This luxury watch stands tall in the world of timepieces, offering a unique blend of style, performance, and heritage. With its automatic winding mechanism, 50-hour power reserve, and chronometer certification, this watch ensures exceptional precision and reliability. The red gold case exudes sophistication and elegance, while the brown dial harmonizes beautifully with the case. The Omega caliber 8521 movement is equipped with the Co-Axial Escapement, providing greater precision, stability, and durability. The watch features a date function, water resistance of up to 100 meters, and a sapphire crystal for scratch resistance and clarity.
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Key Features

  • Automatic winding in both directions
  • 50-hour power reserve
  • Chronometer certified for exceptional precision
  • Red gold case with brown dial
  • Omega caliber 8521 movement with Co-Axial Escapement
  • Date function for easy viewing
  • Water resistance up to 100 meters

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Red Gold / Brown
Reference
123.50.31.20.13.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 31mm
Dial Color
Brown
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Condition: Very good
  • Case Diameter: 34mm
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  • Condition: 7.5/10, minor scratches on crystal and dial visible under strong light
  • Movement: caliber 564, automatic
  • Case dimensions: 35mm diameter (without crown), 40.5mm diameter (with crown)
  • Thickness: 10mm
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  • Condition: good condition with wear and aging on the dial
  • Case width: 34mm
  • Bezel and lugs material: gold filled
  • Year: 1966
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May 15, 2026, 2:36 PM
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  • Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
  • Case dimensions: 39mm x 46.7mm lug to lug x 12.6mm thick
  • Bracelet type: 3-row with slightly curved central links
Posted at
Mar 31, 2025, 10:32 AM
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