Omega Constellation Constellation Co-Axial 31 Stainless Steel / Red Gold / Brown

Reference 123.20.31.20.13.001

Omega Constellation Co-Axial 31 Stainless Steel / Red Gold / Brown

About this watch

The Omega Constellation Co-Axial 31 is a stunning blend of sophistication and mechanical excellence, featuring a unique combination of red gold and stainless steel that creates a striking contrast. The rich brown dial adds warmth to any outfit, while the round case (31mm diameter) sits comfortably on the wrist. The sapphire glass ensures scratch resistance, and the open case back showcases Omega's precision engineering. At its heart lies the Omega Caliber 8520, an automatic movement renowned for reliability and performance. This chronometer has undergone rigorous testing to ensure accuracy, with a power reserve of 50 hours and a frequency of 25,200 vibrations per hour. The Co-Axial escapement reduces friction between components, improving accuracy and extending the watch's lifespan. The Omega Constellation Co-Axial 31 provides an elegant display of time and date, with Dauphine hands gliding smoothly across the dial. Its water resistance rating of 100 meters makes it perfect for active lifestyles or spontaneous adventures. The understated elegance allows it to transition seamlessly from day to night, complementing any outfit.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega Caliber 8520 Automatic Movement
  • Chronometer Accuracy and 50-Hour Power Reserve
  • Sapphire Glass Scratch Resistance
  • Open Case Back for Precision Engineering
  • Red Gold and Stainless Steel Combination
  • 31mm Diameter Round Case
  • Water Resistance up to 100m

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Red Gold / Brown
Reference
123.20.31.20.13.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
Brown
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1960's Omega Constellation Ref. CD 168.017 14k gold capped automatic chronometer

1960's Omega Constellation Ref. CD 168.017 14k gold capped automatic chronometer

Omega - CD 168.017 · $900
A 1966 Omega Constellation Ref. CD 168.017 features a 14k yellow gold capped stainless steel case and a fantastic dial with a few small scratches on the crystal.

  • Condition: Good used condition
  • Year: 1966
  • Case material: 14k yellow gold capped stainless steel
Posted at
Dec 10, 2025, 12:00 AM
Active
View listing on r/WatchExchange
[WTS] omega constellation diamond dial watch $1395

omega constellation diamond dial watch $1395

Omega - null · $1,395
  • Diamond dial: Diamond dial on the Omega Constellation watch
Posted at
Dec 9, 2025, 12:03 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

Omega Constellation f300Hz • Cushion Case • Gold-Plated • New Battery - $800

Omega - Constellation f300Hz (ESA 9162) · $800
This Omega Constellation features a cushion-shaped case with gold-plated plating, a beautiful sunburst champagne dial, and an acrylic crystal. The watch has a thin and comfortable design.

  • Condition: Exceptional for ~50 years old
  • Case Shape: cushion-shaped
  • Case Plating: gold-plated
  • Dial Type: sunburst champagne
Posted at
Dec 8, 2025, 9:05 PM
Active
View listing on r/WatchExchange
[WTS] Omega constellation C Ref 168.019

Omega constellation C Ref 168.019

Omega - 168.019 · $1,300
For sale is my Omega constellation type C ref 168.019, which comes with the original brick style omega bracelet.

  • Condition: Pre-owned, some damage (cracked crystal)
  • Bracelet type: Original brick style
  • Crown origin: Constellation pie pan
  • Serviced: Yes, couple years ago
Posted at
Dec 7, 2025, 4:58 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Ref. 168.016 cal. 751 | Great Condition (Serviced) | $1200

Omega Constellation Ref. 168.016 cal. 751 | Great Condition (Serviced) | $1200

Omega - 168.016 cal. 751 · $1,200
A classic Omega Constellation Ref. 168.016, dating to around 1969, powered by the Caliber 751 movement with day and date functions.

  • Condition: Great serviced condition
  • Case size: 35mm diameter
  • Movement type: automatic
Posted at
Dec 7, 2025, 12:31 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Automatic 🇨🇭 free shipping to USA

Omega Constellation Automatic 🇨🇭 free shipping to USA

Omega - Constellation Automatic · $1,000
This Omega Constellation Automatic features a 2-tone stainless steel and gold case with a matching gold dial. The watch is in great condition with only minor signs of wear.

  • Condition: Great condition with minor signs of wear
  • Case size: 35mm (without crown)
  • Lug to lug: 38mm
  • Lug width: 23mm
Posted at
Dec 6, 2025, 8:54 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation 196.0071 – FaceTime / other Verification Available – $200 Shipped

Omega Constellation 196.0071 – FaceTime / other Verification Available – $200 Shipped

Omega - Constellation 196.0071 · $200
The Omega Constellation 196.0071 is a classic watch model for sale.

Posted at
Dec 6, 2025, 2:26 PM
Active
View listing on r/WatchExchange
[WTS] Vintage Omega Constellation Marine 596.0029 Steel Ladies Watch $600

Vintage Omega Constellation Marine 596.0029 Steel Ladies Watch $600

Omega - 596.0029 · $600
A vintage Omega Constellation Marine ladies watch in stainless steel case, powered by a quartz movement.

  • Condition: Preowned with wear, dents, and marks
  • Case material: stainless steel
  • Movement: quartz
  • Band size: approximately 18 cm
Posted at
Dec 5, 2025, 12:30 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Jumbo 14777-61SC 37mm | Good Condition (Serviced) | $1700

Omega Constellation Jumbo 14777-61SC 37mm | Good Condition (Serviced) | $1700

Omega - 14777-61SC · $1,760
The Omega Constellation Jumbo Ref. 14777-61SC is a vintage watch with a clean, flat dial aesthetic and a starburst dial that plays with light in unique ways.

  • Condition: Good condition, minor scratches and natural marks for its age
  • Case diameter: 37mm
  • Lug width: 19mm
  • Movement: Caliber 561, chronometer-rated automatic with date complication
Posted at
Dec 4, 2025, 10:35 PM
Active
View listing on r/WatchExchange