Omega Constellation Constellation Co-Axial 31 Stainless Steel / Yellow Gold Claws / MOP

Reference 123.20.31.20.55.004

About this watch

The Omega Constellation Co-Axial 31 is an exquisite timepiece that embodies the luxurious spirit of Omega while delivering impressive performance. This stunning watch features a round case made from stainless steel adorned with yellow gold claws, a fixed bezel adding modernity to classic elegance. The Mother of Pearl (MOP) dial shimmers and changes color with light, making it a piece of art on your wrist. Coupled with gem-set indexes, this watch is designed to catch eyes and spark conversations. With its automatic movement, 50-hour power reserve, chronometer certification, and Co-Axial escapement, this watch offers remarkable accuracy and longevity. The bracelet feels luxurious against the skin while being sturdy enough for everyday wear. It's adjustable, ensuring a snug fit for various wrist sizes. This watch is perfect for anyone who appreciates the finer things in life.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega caliber 8520 automatic movement
  • Chronometer certified Co-Axial escapement
  • Stainless steel and yellow gold case
  • Mother of Pearl (MOP) dial
  • Gem-set indexes
  • Water resistance up to 100 meters
  • Adjustable stainless steel and yellow gold bracelet

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Yellow Gold Claws / MOP
Reference
123.20.31.20.55.004
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation 2 tone, 34mm, $799!

Omega Constellation 2 tone, 34mm, $799!

Omega - Constellation · $799
This Omega Constellation is a two-tone, 34mm watch from the 1990s with an 18k gold case and quartz movement. The dial is extremely clean and has minor scratches on the bezel.

  • Condition: very good
  • Case material: 18k gold
  • Movement type: quartz
  • Case size: 34mm
Posted at
Jul 1, 2025, 10:02 PM
Active
omega constellation ref 14381-2sc 14k gold on Bonklip 9k gold bracelet

omega constellation ref 14381-2sc 14k gold on Bonklip 9k gold bracelet

Omega - 14381-2sc · $3,100.003
This is a 1959 Omega 14k solid gold wristwatch with caliber 551 and serial number 17.xxxxxx. It has been serviced and runs perfectly.

  • Condition: Like new, serviced in July 2019
  • Bracelet material: 9k gold
  • Bracelet weight: 30.3g
  • Caliber: 551
Posted at
Jun 30, 2025, 7:59 PM
Active
[WTS] 1969 Omega Constellation Day-Date ref. 168.016 w/ Cal. 751 – Serviced – $575 shipped

1969 Omega Constellation Day-Date ref. 168.016 w/ Cal. 751 – Serviced – $575 shipped

Omega - 168.016 · $575
A classic 1969 Omega Constellation Day-Date ref. 168.016 powered by the chronometer-rated Cal. 751 movement, featuring a stainless steel case and an original signed crown.

  • Movement: Omega Caliber 751 automatic chronometer
  • Crystal: replacement plexiglass
  • Crown: correct original signed crown
Posted at
Jun 30, 2025, 11:55 AM
Active
[WTS] Omega Vingte Constellation 14381 - 1400$ - DHL

Omega Vingte Constellation 14381 - 1400$ - DHL

Omega - 14381 · $1,400
This Omega Constellation is a vintage watch from the 1960s, featuring an automatic 551 movement and an 18k gold and steel case and bracelet.

  • Condition: Good (9/10)
  • Case Material: 18k or 14k gold and steel
  • Caliber: Automatic 551
Posted at
Jun 30, 2025, 11:26 AM
Active