Omega Constellation Constellation Co-Axial 31 Red Gold / Diamond / MOP Supernova

Reference 123.55.31.20.55.001

About this watch

The Omega Constellation Co-Axial 31 Red Gold / Diamond / MOP Supernova is a masterpiece of luxury watchmaking, blending exceptional engineering with mesmerizing design. This stunning timepiece features a luxurious blend of materials and state-of-the-art movement, encapsulating the essence of Omega's commitment to quality. The self-winding caliber 8521 boasts a Co-Axial escapement for superior precision and stability, while its compact round shape and adjustable strap ensure comfort and versatility. With a water resistance of 100 meters, this watch is designed to withstand various activities while maintaining its luxurious appearance. Its exquisite craftsmanship, combined with Omega's heritage of precision, makes it an outstanding choice for anyone seeking a premium timepiece. The stunning white mother-of-pearl dial is complemented by gem-set indexes that catch the light beautifully, exuding sophistication and elegance. Whether you're a seasoned collector or looking to make a statement, this watch caters to a variety of tastes with its timeless design and luxurious appeal.
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Key Features

  • Oscillating Mass: 18 Ct red gold
  • Silicon Balance-Spring for improved performance
  • Geneva Waves in Arabesque fine finishing
  • Gem-Set Bezel with diamonds for elegance
  • Sapphire Glass for scratch resistance
  • Open Case Back showcasing the movement
  • Co-Axial escapement for superior precision

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Red Gold / Diamond / MOP Supernova
Reference
123.55.31.20.55.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Condition: Pre-owned with new battery
  • Case Size: 34mm diameter
  • Material: 10k gold-filled
  • Strap: High-quality AM strap
Posted at
Jan 14, 2026, 1:49 AM
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  • Condition: Pre-owned, requires servicing
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  • Functions work: yes all functions are working
Posted at
Jan 12, 2026, 12:05 PM
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  • Condition: Good, serviced
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  • Lug-to-lug distance: 43.5mm
  • Thickness: 11mm
Posted at
Jan 12, 2026, 10:11 AM
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  • Movement type: Automatic
  • Jewels: 24
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  • Condition: Good overall with light, honest wear
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  • Diameter: 41mm
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Jan 10, 2026, 9:22 PM
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  • Gerald genta design: true
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  • Diameter: 39mm
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