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

Reference 123.25.31.20.55.003

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

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece that beautifully marries form and function. With its luxurious materials, sophisticated design, and reliable movement, it’s a watch that is sure to be cherished for generations. The combination of stainless steel and yellow gold creates a striking contrast that is both modern and classic. The gem-set bezel adds a touch of glamour, making it perfect for formal occasions or everyday wear. The dial is made of exquisite Mother of Pearl, which not only enhances its beauty but also gives it a dynamic quality. Depending on the light, the dial can appear in various colors, ranging from shimmering white to soft pastel hues. Featuring Dauphine hands, the watch ensures excellent readability. At the heart of the Constellation Co-Axial 31 lies the Omega caliber 8520, an automatic movement known for its precision and reliability. The Co-Axial escapement is a significant innovation that reduces friction between the parts, enhancing the watch's longevity and accuracy. With a water resistance of 100 meters, this watch is ideal for daily wear. Whether you’re splashing in the pool or caught in the rain, the Omega Constellation can handle it all.
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Key Features

  • Omega caliber 8520 automatic movement
  • Sapphire crystal glass
  • Water resistance up to 100 meters

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Yellow Gold / Diamond / MOP
Reference
123.25.31.20.55.003
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 Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1100 SHIPPED

Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1100 SHIPPED

Omega - 2852-1 · $1,100
This Omega Constellation Pie Pan watch is stunning and a pinnacle in Omega's dress watch heritage. It features an original, untouched dial with patina'd perfectly and comes on a red leather strap.

  • Condition: Pre-owned, serviced a few years back
  • Lug width: 18mm
  • Strap material: red leather
Posted at
Apr 5, 2026, 3:52 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Automatic Chronometer Watch $1800 SHIPPED

Omega Constellation Automatic Chronometer Watch $1800 SHIPPED

Omega - 168.0075 · $1,800
This Omega Constellation watch features a Cal 1111 movement, 35.5 mm diameter case, and comes with original Omega strap.

  • Condition: pre-owned working condition
  • Movement: Cal 1111
  • Diameter: 35.5mm
Posted at
Apr 4, 2026, 1:05 PM
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View listing on r/WatchExchange
[WTS] Omega Constellation Pie Pan Ref. 168.005 | Great Condition (Serviced) | $2450

Omega Constellation Pie Pan Ref. 168.005 | Great Condition (Serviced) | $2450

Omega - 168.005 · $2,450
The Omega Constellation Pie Pan 168.005 is one of the most iconic dress watches of the 1960s, featuring a stainless steel 34mm case with dog-leg lugs and a silver sunburst dial.

  • Condition: Great Condition (Serviced)
  • Case size: 34mm
  • Movement type: Automatic
Posted at
Mar 31, 2026, 11:24 PM
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[WTS] Rare Vintage Omega Constellation “Manhattan” Chronometer ST 368.1075 – Very Nice Condition

Rare Vintage Omega Constellation “Manhattan” Chronometer ST 368.1075 – Very Nice Condition

Omega - ST 368.1075 · $1,200
This rare vintage Omega Constellation “Manhattan” chronometer features a classic dress-watch design with distinctive 'claws' on the side of the case and an integrated bracelet. The champagne/gilt dial has oxidation, but the case remains in good shape with no deep scratches or dings.

  • Condition: Very nice vintage condition, showing light signs of honest wear consistent with age
  • Movement: Automatic self-winding chronometer-certified movement, typically the Omega Caliber 1110.11.40 (based on the ETA 2892-2)
  • Case diameter: 35mm
  • Water resistance: 30m (3 bar)
Posted at
Mar 31, 2026, 7:00 PM
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[WTS] Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – $1999 + shipping OBO

Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – $1999 + shipping OBO

Omega - 168.005 · $1,999
Up for sale is a **1964 Omega Constellation Pie Pan ref. 168.005**, featuring the classic **dog-leg lugs and cal. 561 movement**.

  • Condition: Excellent for its age
  • Movement: cal. 561
  • Dial condition: Excellent for its age
  • Serviced: Yes (in November 2025)
Posted at
Mar 31, 2026, 1:00 PM
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[WTS] Pair O’ Omega Constellation Manhattans - Stainless & Two Tone Wallet Friendly Day Dates!

Pair O’ Omega Constellation Manhattans - Stainless & Two Tone Wallet Friendly Day Dates!

Omega - Constellation Manhattan Day-Date · $950
The Omega Constellation Manhattan Day-Date is a fantastic choice for those after a small, thin, and complicated watch with integrated bracelets. It was designed by Carol Didisheim in 1982 and features a crisp white dial with luminescent hands and gold dot markers.

  • Condition: Pre-owned, small age-related wear throughout
  • Case Size: 33MM
  • Bracelet Length Stainless: up to 7.5 inches
  • Bracelet Length Two Tone: just over 7 inches
Posted at
Mar 30, 2026, 9:42 PM
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[WTS] Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1250 SHIPPED

Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1250 SHIPPED

Omega - 2852-1 · $1,250
This Omega Constellation Pie Pan watch is a classic, elegant, and beautiful timepiece with an original untouched dial and two-tone variant. It features sharp angular lugs known as 'dog leg' and has been serviced in the past to keep accurate time.

  • Condition: pre-owned
  • Diameter: 35mm
  • Lug width: 18mm
  • Strap material: red leather
Posted at
Mar 30, 2026, 8:10 PM
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[WTS] Omega Constellation. Double Eagle. $1350 only !!

Omega Constellation. Double Eagle. $1350 only !!

Omega - Constellation Double Eagle · $1,350
A Omega Constellation Double Eagle, in good condition, suitable for everyday use.

  • Condition: Good daily wear
  • Lume quality: nice
  • Case size: 38/39mm
  • Shipping method: Fedex with insurance
Posted at
Mar 30, 2026, 6:30 PM
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[WTS] 1959 Omega Constellation ref. 14393 gold capped w/ Cal. 561 – crosshair dial – $1575 shipped

1959 Omega Constellation ref. 14393 gold capped w/ Cal. 561 – crosshair dial – $1575 shipped

Omega - 14393 · $1,575
1959 Omega Constellation ref. 14393 with chronometer-grade Cal. 561 automatic movement, clean original sunburst crosshair dial, and a very honest overall presentation.

  • Condition: Excellent with honest presentation
  • Movement: Cal. 561 automatic movement
  • Dial: Original sunburst crosshair dial
  • Service: Freshly serviced in March 2026
Posted at
Mar 30, 2026, 12:58 PM
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View listing on r/WatchExchange