Omega Constellation Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova

Reference 123.50.27.20.55.001

About this watch

The Omega Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova is a masterpiece of luxury watchmaking, boasting a stunning design and innovative technology. Crafted from brushed red gold, this 27mm round case exudes warmth and sophistication, while the mother-of-pearl dial shimmers beautifully under any light. The fixed 12-hour bezel complements the overall aesthetic, and the sapphire crystal provides durability and scratch resistance. At the heart of this timepiece is the Omega Caliber 8521, a self-winding movement featuring the Co-Axial escapement for enhanced precision, stability, and durability. This watch displays hours, minutes, and seconds, with a date function seamlessly integrated into the design. Certified as a chronometer, it meets high standards of precision and reliability. With a water resistance of up to 100 meters, this watch can handle splashes and brief immersions without a hitch.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega Caliber 8521 self-winding movement
Co-Axial escapement for enhanced precision and stability
Certified chronometer with high standards of precision and reliability
Water resistance up to 100 meters
Mother-of-pearl dial with gem-set indexes
Brushed red gold case with a 27mm diameter
Sapphire crystal for durability and scratch resistance

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 27 Brushed Red Gold / MOP Supernova

Reference

123.50.27.20.55.001

Movement

8521

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Red Gold 27mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

Omega Constellation Pie Pan Crosshair Dial Ref 14393

Omega - 14393 · $1,950

This Omega Constellation features a Pie Pan Crosshair dial and comes fitted on an Omega beads of rice bracelet. The 35mm case is in good shape with sharp lugs.

Condition: some wear, overall great condition, sharp lugs
Bracelet: Omega beads of rice bracelet

Posted at

Apr 8, 2026, 11:55 AM

Active

View listing on r/WatchExchange

omega constellation 168.005 | original crystal & crown | unpolished

Omega - 168.005 · $2,250

The Omega Constellation is a luxury watch being sold unpolished, retaining its original crystal and crown. It comes with a metal lined presentation box.

Condition: unpolished
Original crystal & crown: true
Shipped: true

Posted at

Apr 8, 2026, 7:29 AM

Active

View listing on r/WatchExchange

Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced (11/2025) – $1945 + shipping OBO

Omega - 168.005 · $1,945

a 1964 Omega Constellation Pie Pan ref. 168.005 featuring dog-leg lugs and cal. 561 movement, serviced in November 2025.

Condition: Excellent for its age
Calibre: Cal. 561 movement
Year: 1964
Movement type: Chronometer-grade

Posted at

Apr 7, 2026, 3:26 PM

Active

View listing on r/WatchExchange

(Spiralwinder) Vintage Omega Seamaster and Constellation Display Caseback

· $65

This listing is about a display caseback designed to fit many Omega Seamaster and Constellation watches from the 1960s, made by Spiralwinder.

Caseback type: Spiralwinder
Compatible models: 1960s Seamasters and Constellations

Posted at

Apr 7, 2026, 1:54 PM

Active

View listing on r/WatchExchange

Omega Constellation Pie Pan Cal. 564 Ref. 168.005 | Great Condition (Serviced) | $2600

Omega - 168.005 · $2,600

The Omega Constellation Pie Pan Ref. 168.005 is a quintessential 1960s dress watch that embodies Omega’s pursuit of precision and elegance during the golden age of Swiss watchmaking.

Condition: Great serviced condition
Movement: Omega Calibre 564
Jewels: 24

Posted at

Apr 6, 2026, 11:13 PM

Active

View listing on r/WatchExchange

Package Deal! Two Omega Constellation Manhattan Day Dates - Integrated Bracelet Beauties CHEAP!

Omega - Constellation Manhattan Day-Date · $1,795

Two Omega Constellation Manhattan Day-Dates for sale, one in full steel and the other in two-tone. Both have crisp white dials, luminescent hands, and gold dot markers.

Condition: Pre-owned, unpolished with age-related wear
Diameter: 33MM
Bracelet Length Stainless: up to approximately 7.5 inches
Bracelet Length Two Tone: just over 7 inches

Posted at

Apr 6, 2026, 9:48 PM

Active

View listing on r/WatchExchange

Rare Omega Constellation 2000 Millennium 1504.50

Omega - 1504.50 · $999

This Omega Constellation 2000 Millennium edition is a unique timepiece commemorating the turn of the millennium, with only 2000 pieces produced. It features 'OMEGA 2000' text and lumed roman numeral markers instead of stick indexes.

Condition: Good condition, with normal signs of wear and scratching on the crystal
Production run: Limited to 2000 pieces
Service history: Unknown

Posted at

Apr 5, 2026, 8:40 PM

Active

View listing on r/WatchExchange

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