Omega Constellation Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars

Reference 123.55.27.20.05.004

Omega Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars

About this watch

The Omega Constellation 123.55.27.20.05.004 is a masterpiece that embodies luxury, precision, and elegance. This stunning timepiece boasts an 18 Ct red gold case, gem-set bezel, and scratch-resistant sapphire glass, making it a true work of art. The Omega caliber 8521 movement, featuring Co-Axial escapement and silicon balance-spring, ensures unparalleled accuracy and durability. With its white mother of pearl (MOP) dial adorned with diamond accents, this watch is like wearing a piece of the night sky on your wrist. Its impressive water resistance of up to 1000 meters makes it perfect for diving enthusiasts, while its compact size of 27.00 mm ensures elegance without bulkiness. The Constellation Co-Axial 27 is not just a watch; it's a certified chronometer, trusted to keep impeccable time. Whether you're at a board meeting or a beach party, this watch has got you covered. Its date function and luxurious finishes make it a true masterpiece of horology.
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MSRP: $34,000
Market Price: $14,472

Key Features

  • 18 Ct red gold case
  • Gem-set bezel with scratch-resistant sapphire glass
  • Omega caliber 8521 movement with Co-Axial escapement and silicon balance-spring
  • White mother of pearl (MOP) dial with diamond accents
  • Impressive water resistance of up to 1000 meters
  • Compact size of 27.00 mm
  • Certified chronometer with date function

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars
Reference
123.55.27.20.05.004
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
1000

Current Listings

[WTS] 1962 Omega Constellation Pie Pan Ref. 14602 62 SC | Good Vintage Condition | Sunray Silver Dial | All Original | $1900 (SERVICED)

1962 Omega Constellation Pie Pan Ref. 14602 62 SC | Good Vintage Condition | Sunray Silver Dial | All Original | $1900 (SERVICED)

This 1962 Omega Constellation Pie Pan Ref. 14602 62 SC is a masterclass in mid-century elegance, featuring a crisp silver sunray dial and the iconic 'Pie Pan' dial geometry.

Posted at
Apr 13, 2026, 9:37 AM
Active
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[WTS] Automatic Omega Constellation Manhattan and Hand-Winding Pre-WWII Omega

Automatic Omega Constellation Manhattan and Hand-Winding Pre-WWII Omega

Omega - 168.0075 · $1,600
This listing is for two Omega watches: an automatic chronometer and a pre-WWII hand-winding watch, both in working condition but with unknown service history.

  • Condition: pre-owned working condition
  • Service history: unknown
  • Caliber: Cal 1111
Posted at
Apr 12, 2026, 8:06 PM
Active
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[WTS] Omega Constellation Automatic Ref.155.0021 Cal 711 Rare Antique Gold Dial Men's Watch $600

Omega Constellation Automatic Ref.155.0021 Cal 711 Rare Antique Gold Dial Men's Watch $600

Omega - 155.0021 · $600
A rare Omega Constellation Automatic watch from Switzerland, featuring a stainless steel case and gold band.

  • Condition: Preowned with some wear, scratches and marks
  • Case width: 31 mm (without crown)
  • Band material: Stainless steel & Gold
  • Band size: Will fit up to approx 18.5 cm
Posted at
Apr 12, 2026, 4:57 PM
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[WTS] Omega Constellation Co-Axial Master Chronometer – 39mm – Full Set

Omega Constellation Co-Axial Master Chronometer – 39mm – Full Set

Omega - 39mm
Posted at
Apr 12, 2026, 1:01 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 · $999
A rare vintage Omega Constellation “Manhattan” chronometer ref. ST 368.1075, a classic example of Omega’s timeless dress-watch design, characterized by its distinctive 'claws' on the side of the case and an integrated bracelet.

  • Condition: Very nice vintage condition, showing light signs of honest wear consistent with age
  • Movement: Automatic self-winding chronometer-certified movement, Omega Caliber 1110.11.40 (based on ETA 2892-2), 42–44 hour power reserve, 21 jewels
  • Diameter: 35mm
  • Thickness: 7.5mm
Posted at
Apr 10, 2026, 4:18 PM
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[WTS] Omega Constellation 568.016 Ladies Automatic Chronometer 18K WG Bezel Cal 682 Full Set

Omega Constellation 568.016 Ladies Automatic Chronometer 18K WG Bezel Cal 682 Full Set

Omega - 568.016 · $1,349
This Omega Constellation Automatic Chronometer features a stainless steel case with an 18K solid white gold bezel, silver sunburst dial, and Observatory medallion caseback.

  • Condition: Near-mint
  • Case size: 25mm
  • Lug to lug length: 30mm
  • Movement frequency: 19,800 bph
Posted at
Apr 10, 2026, 1:43 AM
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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
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View listing on RolexForums