Omega Constellation Constellation Co-Axial 31 Red Gold / MOP

Reference 123.50.31.20.55.001

About this watch

The Omega Constellation Co-Axial 31 Red Gold / MOP is a masterpiece of luxury watchmaking. Its round 31mm case in luxurious red gold exudes warmth and richness, while the iridescent mother-of-pearl dial creates a visual spectacle that's hard to ignore. The Dauphine hands glide smoothly over the dial, ensuring time is both visible and beautifully presented. At its heart lies the Omega Caliber 8521, a self-winding movement designed for precision and reliability. With automatic winding in both directions and a power reserve of 50 hours, this watch is built to withstand daily wear and tear. Certified as a chronometer, it guarantees exceptional accuracy, making it a testament to Omega's commitment to quality and precision.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega Caliber 8521 self-winding movement
  • Red gold case with mother of pearl dial
  • Fixed bezel with 12-hour markings
  • 100m water resistance
  • Certified chronometer for exceptional accuracy

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Red Gold / MOP
Reference
123.50.31.20.55.001
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

[WTS] Vintage Omega Constellation Chronometer - 168.0056 - C-Shaped Case - $799 Shipped!

Vintage Omega Constellation Chronometer - 168.0056 - C-Shaped Case - $799 Shipped!

Omega - 168.0056 · $799
A vintage Omega Constellation Chronometer with a C-shaped case, inspired by Gerald Genta, featuring an automatic movement and date window at 3 o'clock.

  • Condition: Good condition with signs of wear
  • Case shape: C-Shaped Case
  • Case size: 35mm diameter
  • Movement type: Automatic
Posted at
May 5, 2025, 3:48 PM
Active
[WTS] Rare 1956 Omega Constellation in Rose Gold / SS

Rare 1956 Omega Constellation in Rose Gold / SS

This is an older Omega Constellation model from 1956, featuring one of the first automatic 5xx series movements. The watch has a smooth winding mechanism and looks great in natural light.

  • Condition: Pre-owned with a scratch on the dial between 1 and 2
  • Movement series: 5xx series (automatic)
  • Case diameter: 34mm
Posted at
May 4, 2025, 7:23 PM
Active
[WTS] FULL COLLECTION SALE PT 2: Tiffany Eastwest (now discontinued), Hamilton Intramatic Chronograph 40mm, Baltic Aquascaphe GMT, Longines Legend Diver 36mm Red Dial, Omega Constellation 35mm

FULL COLLECTION SALE PT 2: Tiffany Eastwest (now discontinued), Hamilton Intramatic Chronograph 40mm, Baltic Aquascaphe GMT, Longines Legend Diver 36mm Red Dial, Omega Constellation 35mm

The seller is listing a collection of five watches for sale, including a Hamilton Intramatic Chronograph, Baltic Aquascaphe GMT, Longines Legend Diver 36mm Red Dial, Omega Constellation 35mm, and Tiffany Eastwest.

  • Condition: pristine
  • Movement: Soprod C125 GMT
  • Case size: 40/20mm
  • Crystal: domed sapphire
Posted at
May 4, 2025, 5:18 PM
Active
[WTS] Omega Constellation. PiePan. Gorgeous Dial.

Omega Constellation. PiePan. Gorgeous Dial.

Omega · $1,375
This Omega Constellation features a Pie Pan dial and is an automatic watch. It comes with an AM strap.

  • Condition: nice condition
  • Case size: 40mm diameter
  • Strap material: AM strap
Posted at
May 4, 2025, 3:12 PM
Active
[WTS] Omega Constellation Co-Axial Chronometer, or, "We have PRX at home"

Omega Constellation Co-Axial Chronometer, or, "We have PRX at home"

The Omega Constellation Co-Axial Chronometer features a 35mm case size, Caliber 2500 chronometer movement, and a reverse clous de paris dial.

  • Condition: Good (with some hairline scratches)
  • Case dimensions: 35mm diameter, 38.4mm lug-to-lug, 10.8mm thickness
  • Bracelet size: adjustable to fit a 6.75 inch wrist
  • Movement type: Caliber 2500 chronometer, Co-Axial movement
Posted at
May 4, 2025, 11:47 AM
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