Omega Constellation Constellation Co-Axial 27 Brushed Red Gold / Diamond / Diamond Moon

Reference 123.55.27.20.55.005

Omega Constellation Co-Axial 27 Brushed Red Gold / Diamond / Diamond Moon

About this watch

The Omega Constellation Co-Axial 27 embodies the essence of luxury watchmaking with its exquisite design, advanced movement, and durable construction. This stunning timepiece features a brushed red gold case radiating warmth and elegance, complemented by a gem-set bezel that adds a touch of sparkle. The mother-of-pearl dial provides an excellent contrast against the gold and diamonds, ensuring legibility while making a statement piece. At its heart lies the Omega caliber 8421, a self-winding movement with a Co-Axial escapement, enhancing precision and stability. With a power reserve of 50 hours and a frequency of 25,200 vibrations per hour, this movement is designed for longevity and reliability. The watch boasts a water resistance rating of 100 meters, making it suitable for everyday wear. Its round shape complements the overall aesthetic, making it perfect for both casual and formal occasions.
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Key Features

  • Omega caliber 8421 self-winding movement
  • Co-Axial escapement for precision and stability
  • Water resistance up to 100 meters
  • Mother-of-pearl dial with gem-set bezel
  • Brushed red gold case with 18 Ct red gold oscillating mass
  • Exclusive Geneva waves in arabesque finish on movement
  • High-quality strap for comfort

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Red Gold / Diamond / Diamond Moon
Reference
123.55.27.20.55.005
Movement
8421
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
Red Gold 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[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
Active
View listing on r/WatchExchange
[WTS] Omega Constellation 1542.30

Omega Constellation 1542.30

Omega - 1542.30 · $1,300
A pre-owned Omega Constellation 1542.30 in great shape with all functions working correctly, featuring a clear crystal and a well-maintained bracelet.

  • Condition: great shape with minor scuffing on the bracelet
  • Crystal clarity: clear
  • Bracelet stretch: little to no stretch
Posted at
Mar 30, 2026, 10:08 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Day-Date Ref. 396.1080 Two-Tone

Omega Constellation Day-Date Ref. 396.1080 Two-Tone

Omega - 396.1080 · $1,000
The Manhattan-era Constellation is a cleaner quartz watch design from the late 1980s, featuring a steel case, 18k yellow gold bezel, black Roman numerals, gold-accented integrated bracelet, and a white dial showing day and date via two independent subdials.

  • Condition: Good with expected light wear to the bracelet and case
  • Case Diameter: 33mm
  • Bezel Material: 18k yellow gold
  • Crystal Type: Sapphire
Posted at
Mar 29, 2026, 3:25 PM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation 168.027 1968 "Linen dial" with white gold bezel

Omega Constellation 168.027 1968 "Linen dial" with white gold bezel

Omega - 168.027 · $1,350
A used 1968 Omega Constellation featuring an automatic caliber 564 movement with a quickset date and a beautiful linen dial.

  • Condition: 7.5/10
  • Movement: caliber 564
  • Case condition: slight marks on the dial visible under strong artificial light
Posted at
Mar 29, 2026, 12:57 PM
Active
View listing on r/WatchExchange
[WTS] 1959 Omega Constellation patina Pie Pan dial ref. 14381 with original bracelet!! Serviced!! - $1890 shipped!

1959 Omega Constellation patina Pie Pan dial ref. 14381 with original bracelet!! Serviced!! - $1890 shipped!

Omega - 14381 · $1,890
This vintage Omega Constellation Pie Pan automatic watch features a beautiful patina dial, rose gold hands and indices, and an original stainless steel case with genuine Omega bracelet. The watch has been serviced and keeps good time.

  • Condition: 9/10
  • Case size: 34.5mm
  • Movement caliber: 551
  • Bracelet type: Original Omega bracelet
Posted at
Mar 29, 2026, 10:57 AM
Active
View listing on r/WatchExchange
[WTS] Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1300 SHIPPED

Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1300 SHIPPED

Omega - 2852-1 · $1,300
This Omega Constellation Pie Pan watch is a stunning and elegant example of Omega's dress watch heritage. The watch has an original, untouched dial and features a two-tone variant with solid yellow gold bezel and medallion. The case is made of steel.

  • Condition: Pre-owned, serviced a few years back
  • Case material: Steel, two tone (gold capped lugs)
  • Diameter: 35mm
  • Lug width: 18mm
Posted at
Mar 27, 2026, 4:27 PM
Active
View listing on r/WatchExchange
Omega Constellation Globemaster Master Chronometer

Omega Constellation Globemaster Master Chronometer

Omega - 130.30.39.21.03.001 · $4,650
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
View listing on RolexForums