Omega Constellation Constellation Co-Axial 31 Red Gold / MOP

Reference 123.50.31.20.05.001

About this watch

The Omega Constellation Co-Axial 31 Red Gold / MOP (Model: 123.50.31.20.05.001) is a statement piece that balances elegance and functionality. Crafted from 18 Ct red gold, it features an exquisite Mother of Pearl dial with a unique, iridescent quality. The watch boasts a self-winding Omega Caliber 8521 movement with Co-Axial escapement, ensuring precision, stability, and durability. With a water resistance of up to 100 meters and a sapphire crystal glass, this timepiece is designed to keep up with your lifestyle. Its versatility makes it suitable for any occasion, whether formal or casual. The Omega Constellation Co-Axial 31 Red Gold / MOP is more than just a watch; it's a piece of art, a conversation starter, and a reliable companion.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • 18 Ct red gold case
  • Mother of Pearl dial with iridescent quality
  • Self-winding Omega Caliber 8521 movement
  • Co-Axial escapement for precision and durability
  • Water resistance up to 100 meters
  • Sapphire crystal glass for scratch-resistant properties
  • Versatile design suitable for formal or casual occasions

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Red Gold / MOP
Reference
123.50.31.20.05.001
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

[WTS] [WW] Omega Omega Constellation Ladies 24mm MOP

[WW] Omega Omega Constellation Ladies 24mm MOP

Omega - 6563-875 · $700
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
Active
[WTS] Omega Constellation 168.017 (1966)

Omega Constellation 168.017 (1966)

Omega - 168.017 · $900
This Omega Constellation is a beautiful example from 1966 with an original dial and hands.

  • Condition: Good condition overall
  • Movement: Cal. 561
  • Bracelet: Genuine Omega 518 brick
Posted at
Jan 6, 2026, 10:25 AM
Active
[WTS] OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

The OMEGA Constellation Ref. 123.20.35.20.06.001 features a distinctive stainless steel and yellow gold case with Roman numeral-engraved bezel, a captivating grey dial with date window at 3 o'clock, and an integrated yellow gold and stainless steel bracelet.

  • Condition: VERY GOOD with some light scratches on the bracelet
  • Case material: yellow gold and stainless steel
  • Bracelet size: ~7"
  • Bracelet condition: pre-sized
Posted at
Jan 3, 2026, 5:15 AM
Active
[WTS] Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $5,575
A rare and highly desirable 1960s Omega Constellation Ref. 14393 in 18K rose gold, featuring a silver pie-pan dial and 34mm case size.

  • Case size: 34mm
  • Year of production: 1960s
  • Case material: 18K rose gold
Posted at
Jan 1, 2026, 7:47 PM
Active
Omega Constellation Globemaster Master Chronometer

Omega Constellation Globemaster Master Chronometer

The Omega Constellation Globemaster 39mm is a versatile dress watch with a dark blue pie pan dial and fluted tungsten carbide bezel. It has goldilocks proportions and a beautiful 3-row bracelet.

  • 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
Active