Omega Constellation Constellation Co-Axial 38 White Gold / Diamond / Black

Reference 123.55.38.21.51.001

Omega Constellation Co-Axial 38 White Gold / Diamond / Black

About this watch

The Omega Constellation Co-Axial 38 (model 123.55.38.21.51.001) is an epitome of luxury and sophistication, boasting an impeccable design with a white gold case, gem-set bezel, and rich black dial. The watch features a robust automatic movement, the Omega caliber 8501, which boasts precision and innovation, including a Co-Axial escapement that reduces friction and enhances longevity. With a power reserve of approximately 60 hours, this chronometer is reliable and accurate. Its stunning design combines elegance with functionality, making it perfect for everyday wear or formal occasions. The watch displays hours, minutes, seconds, and date, while its Dauphine hands glide smoothly over the dial, providing clear visibility. With a water resistance of up to 100 meters, you can enjoy swimming, snorkeling, or other water activities without worrying about your timepiece. As a statement piece, this Omega Constellation Co-Axial 38 carries with it a legacy of excellence and a promise of reliability, making it a worthy addition to any collection.
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Key Features

  • White gold case
  • Gem-set bezel
  • Automatic movement (Omega caliber 8501)
  • Co-Axial escapement
  • Chronometer accuracy
  • Water resistance up to 100 meters
  • Dauphine hands

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 38 White Gold / Diamond / Black
Reference
123.55.38.21.51.001
Movement
8501
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
White Gold 38mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

Omega - 14777 · $950
This 1962 Omega Constellation ref. 14777 features a 37mm stainless-steel case, chronometer-rated cal. 561 movement, and an original champagne dial with crosshair design.

  • Condition: Shows signs of wear and past polish, but still presents well on wrist
  • Case Size: 37mm
  • Diameter Excluding Crown: true
  • Lug Shape: decent
Posted at
Mar 18, 2026, 9:06 AM
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[WTS] 2025 Omega Constellation 41mm Steel Meteorite Dial 131.30.41.21.99.001 Full Set

2025 Omega Constellation 41mm Steel Meteorite Dial 131.30.41.21.99.001 Full Set

Omega - 131.30.41.21.99.001 · $6,850
This Omega Constellation features a 41mm stainless steel case, black ceramic bezel with liquid metal Roman numerals, meteorite dial with black PVD hands & markers, and a stainless steel bracelet. The watch is from 2025 and comes in full set condition.

  • Condition: Nice preowned condition with some light scratches on the case and bracelet.
  • Case material: stainless steel
  • Bezel material: black ceramic
  • Dial description: meteorite dial
Posted at
Mar 17, 2026, 6:55 PM
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[WTS] Omega Constellation Chronometer Quartz with Original Bracelet for sale $599 - Shipped

Omega Constellation Chronometer Quartz with Original Bracelet for sale $599 - Shipped

Omega - Constellation Chronometer Quartz · $599
a quartz-powered Omega Constellation with a stainless steel case and original bracelet for sale

  • Bracelet size limit: up to 6.7 inches
  • Case diameter: 25.6mm
Posted at
Mar 17, 2026, 5:03 PM
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[WTS] Dry or Sweet Manhattan? 2 Omega Constellation Manhattan Day-Dates - The Wallet Friendly Integrated Bracelet Choice!

Dry or Sweet Manhattan? 2 Omega Constellation Manhattan Day-Dates - The Wallet Friendly Integrated Bracelet Choice!

Omega - Constellation Manhattan Day-Date · $995
The Omega Constellation Manhattan Day-Date is a fantastic choice for those looking for an integrated bracelet watch. Designed by Carol Didisheim in 1982, this model features a crisp white dial and gold dot markers. The case measures 33MM and has an oversized bezel.

  • Condition: Pre-owned, unpolished with patina
  • Case size: 33MM
  • Bezel size: oversized
  • Bracelet length: stainless: up to 7.5 inches, two tone: just over 7 inches
Posted at
Mar 16, 2026, 9:30 PM
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[WTS] PRICE REDUCED! 1966 OMEGA CONSTELLATION

PRICE REDUCED! 1966 OMEGA CONSTELLATION

Omega - 168.005 · $2,500
A modern vintage grail, a 1966 Omega Constellation featuring 'dog leg' lugs and a cross hair dial in original condition. The silver dial remains in superb condition.

  • Condition: UNPOLISHED/UNTOUCHED with minor scratches on the case and caseback
  • Case Diameter: 34mm
  • Case Length: 42.7mm
  • Movement Type: Automatic wind
Posted at
Mar 16, 2026, 6:05 PM
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[WTS] 60s Omega Constellation Pie Gold Cap Pan Ref. 168.005 | Dog-leg Lugs | All Original | $2450 (SERVICED)

60s Omega Constellation Pie Gold Cap Pan Ref. 168.005 | Dog-leg Lugs | All Original | $2450 (SERVICED)

Omega - 168.005 · $2,450
This vintage Omega Constellation has a design icon 'Pie Pan' dial with faceted edges and bold applied markers, along with twisted dog-leg lugs and chronometer-rated movement.

  • Condition: Serviced, good condition with some light spotting on the dial
  • Movement Rating: Chronometer-rated
  • Case Condition: Very good condition
  • Diameter: 34mm (diameter)
Posted at
Mar 16, 2026, 9:33 AM
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[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 and a silver sunburst dial with applied hour markers.

  • Condition: great condition
  • Case size: 34mm diameter
  • Dial color: silver sunburst
  • Movement type: chronometer-certified automatic
Posted at
Mar 15, 2026, 1:07 AM
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[WTS] Omega Constellation Day-Date Quartz • c.1980 Movement Rebuilt

Omega Constellation Day-Date Quartz • c.1980 Movement Rebuilt

Omega - Constellation Day-Date Quartz · $999
A classic Omega Constellation from the 1980s with a day-date display and slim quartz profile, featuring a recent quartz movement overhaul.

  • Condition: Set watch only, case in good vintage condition with wear
  • Movement Status: quartz movement recently overhauled and running properly
  • Case Condition: good vintage condition with wear
Posted at
Mar 14, 2026, 12:40 PM
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[WTS] 1962 Omega 18k Solid Gold Constellation 167005 /6 - Cal 551 - Pie Pan - Dog Legs

1962 Omega 18k Solid Gold Constellation 167005 /6 - Cal 551 - Pie Pan - Dog Legs

Omega - 167005/6 · $4,750
This exceptional Omega Constellation features a classic 34mm solid gold case with a stunning gold pie-pan dial and an original calibre 551 movement. The watch has been freshly serviced by our watchmaker and is running reliably.

  • Condition: unpolished, sharp condition retaining factory bevels
  • Case size: 34mm diameter
  • Case material: 18k solid yellow gold
  • Dial condition: original, stunning condition
Posted at
Mar 13, 2026, 7:03 PM
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