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

Reference 123.25.31.20.55.001

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

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece of horology, combining stunning design with precision engineering. Its 31mm round case, crafted from stainless steel and red gold, exudes elegance and sophistication. The gem-set bezel shines like a constellation, while the mother-of-pearl dial shimmers with a unique texture that's almost like a dance of colors. The dauphine hands are both elegant and easy to read, making this watch perfect for both casual and formal occasions. At its core is the Omega caliber 8520, an automatic movement featuring chronometer certification and a power reserve of 50 hours. With a water resistance of 100 meters, this watch is designed for everyday use while still looking elegant.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • 31mm round case in stainless steel and red gold
  • Mother-of-pearl dial with unique texture
  • Dauphine hands for easy time-telling
  • Omega caliber 8520 automatic movement with chronometer certification
  • Water resistance of 100 meters
  • Sapphire crystal glass for scratch-resistance

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Red Gold / Diamond / MOP Supernova
Reference
123.25.31.20.55.001
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] Vintage 1.969 - Omega Constellation Chronometer Automatic ( Silver Linen Dial ) | Ref 153.014

Vintage 1.969 - Omega Constellation Chronometer Automatic ( Silver Linen Dial ) | Ref 153.014

Posted at
May 10, 2026, 11:16 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean

Omega Constellation Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean

Omega - 396.1070 · $850
A vintage Omega Constellation Manhattan watch, reference 396.1070, featuring a silvery white dial and blue hands. The 33mm diameter case has a tonneau shape with an integrated bracelet.

  • Condition: Very good
  • Case Diameter: 33mm
  • Lug To Lug Length: 35.2mm
  • Bracelet Size Range: ~6.75"
Posted at
May 10, 2026, 6:23 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Gold Filled Reference 14902 SERVICED

Omega Constellation Gold Filled Reference 14902 SERVICED

Omega - 14902 · $1,450
A vintage Omega Constellation Pie Pan from 1966 in good condition, serviced recently.

  • Condition: Good condition with wear and aging on the dial
  • Case Width: 34mm
  • Year: 1966
Posted at
May 8, 2026, 12:52 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Gold Pie Pan $2100

Omega Constellation Gold Pie Pan $2100

Omega - 168.005 · $2,100
A classic early-60s Constellation with an iconic pie-pan dial and clean case, perfectly representing Omega's chronometer design language at its peak.

  • Condition: Excellent with all original parts
  • Case material: Gold Cap case
  • Dial description: Pie-pan dial
  • Dimensions width: 34.5 mm (excluding crown)
Posted at
May 7, 2026, 4:34 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Manhattan Day Date Gold & Stainless - GET YOUR MET GALA ON Just $995 SHIPPED

Omega Constellation Manhattan Day Date Gold & Stainless - GET YOUR MET GALA ON Just $995 SHIPPED

Omega - Constellation Manhattan Day Date · $995
A vintage Omega Constellation Manhattan with a crisp white dial and gold dot markers. The watch features an integrated bracelet and a Swiss quartz movement with quickset date.

  • Condition: Pre-owned, unpolished, with age-related wear
  • Diameter: 33mm
  • Bracelet size: approximately 7.25 inches
  • Movement type: Swiss quartz movement with quickset date
Posted at
May 6, 2026, 10:00 PM
Active
View listing on r/WatchExchange
[WTS] 1973 Omega Constellation ref. 168.0057 w/ Cal. 1021 – Serviced, 35mm gold-capped case, original 1040 bracelet – $1,375

1973 Omega Constellation ref. 168.0057 w/ Cal. 1021 – Serviced, 35mm gold-capped case, original 1040 bracelet – $1,375

Omega - 168.0057 · $1,375
A 1973 Omega Constellation ref. 168.0057, powered by the automatic chronometer Cal. 1021 with quick-set day-date, and comes on its original Omega brick bracelet ref. 1040.

  • Condition: Very good condition with normal wear from age
  • Movement caliber: Cal. 1021
  • Bracelet size: fits up to approx. 7.25" wrist
Posted at
May 6, 2026, 9:15 AM
Active
View listing on r/WatchExchange
Tiltle: [WTS] 1963 Omega Constellation Pie Pan Ref. 168.005 | Caliber 561 | Dog-Leg Lugs | Tritium Dial | All Original | $2200 (SERVICED)

Tiltle: 1963 Omega Constellation Pie Pan Ref. 168.005 | Caliber 561 | Dog-Leg Lugs | Tritium Dial | All Original | $2200 (SERVICED)

Omega - 168.005 · $2,200
A 1963 Omega Constellation Pie Pan with a silver sunburst dial, applied gold faceted indices, and a Chronometer-rated Caliber 561 automatic movement.

  • Condition: Excellent vintage condition
  • Movement: Serviced Automatic Chronometer-rated Caliber 561
  • Dial: Original Silver Sunburst Pie Pan dial
  • Case: 34.5mm Gold-capped construction with 42.5mm lug-to-lug and ~11mm thickness
Posted at
May 5, 2026, 9:38 AM
Active
View listing on r/WatchExchange
[WTS] 1959 Omega Constellation 14381 Cal. 551 — Crosshair Pie-Pan, Original Ω-Signed Crystal & 12-Notch Crown — $2,795 shipped CONUS

1959 Omega Constellation 14381 Cal. 551 — Crosshair Pie-Pan, Original Ω-Signed Crystal & 12-Notch Crown — $2,795 shipped CONUS

Omega - 14381-7 SC · $2,795
This is a rare 1959 Omega Constellation Chronometer, ref. 14381-7 SC, Cal. 551 automatic watch with an early crosshair pie-pan variant dial and original Ω-signed crystal and crown.

  • Condition: Light surface wear consistent with age
  • Year: 1959
  • Caliber: Omega 551 (base 550)
  • Jewels: 24
Posted at
May 4, 2026, 1:09 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation 168.001 "Jumbo" 37MM Gold Capped - $2,400

Omega Constellation 168.001 "Jumbo" 37MM Gold Capped - $2,400

Omega - 168.001 · $2,400
  • Condition: Excellent condition for a watch >60 years old
  • Movement Type: Calibre 561 Automatic Chronometer
  • Case Size: 37MM (~45MM Lug-to-Lug)
  • Lug Width: 19mm
Posted at
May 3, 2026, 12:49 PM
Active
View listing on r/WatchExchange