Omega Constellation Constellation Co-Axial 31 Stainless Steel / Red Gold / MOP

Reference 123.20.31.20.55.001

Omega Constellation Co-Axial 31 Stainless Steel / Red Gold / MOP

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece of luxury watchmaking, blending classic elements with contemporary flair. This stunning timepiece features a 31.00 mm round case crafted from the finest materials, ensuring durability while maintaining an air of elegance. The mother of pearl (MOP) dial is a standout feature, reflecting light beautifully and giving the watch a unique character that changes with the angle of view. The elegant dauphine hands glide effortlessly across the dial, adding a touch of grace to the overall aesthetic. At its heart lies the Omega caliber 8520, an automatic movement certified by the Swiss Official Chronometer Testing Institute (COSC) for precision and performance. With a power reserve of 50 hours, this watch is built to last, ensuring you can trust the time displayed on your wrist. The Co-Axial escapement minimizes friction between components, resulting in enhanced longevity and improved timekeeping accuracy. Whether you're dressing up for a formal event or looking for a stylish accessory for everyday wear, this watch elevates your look with its blend of sophistication and elegance.

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Key Features

Omega caliber 8520 automatic movement
Mother of pearl (MOP) dial with gem-set indexes
Red Gold and Stainless Steel case
100 meters water resistance
Chronometer certification by COSC
Co-Axial escapement for improved accuracy

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 31 Stainless Steel / Red Gold / MOP

Reference

123.20.31.20.55.001

Movement

8520

Movement Features

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

Case

31mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

[WW] Omega Omega Constellation Ladies 24mm MOP

Omega - 6563-875 · $700

The Omega Constellation Ladies watch features a stainless steel case with a mother-of-pearl dial. It has a quartz movement for accurate timekeeping and comes with its original box and papers.

Condition: Good - shows signs of wear (scratches on bracelet and bezel, also there are dents on the back case)
Case Material: Stainless Steel
Movement: Quartz
Bracelet Length: 180mm (approx.)

Posted at

Jan 6, 2026, 3:13 PM

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Omega Constellation 18k gold price: 1350 euro

Omega - Constellation · $1,350

Posted at

Jan 6, 2026, 10:34 AM

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Omega Constellation 168.017 (1966)

Omega - 168.017 · $900

This Omega Constellation is a beautiful example from 1966 with an original dial and hands.

Condition: Good condition overall
Movement: Cal. 561
Bracelet: Genuine Omega 518 brick

Posted at

Jan 6, 2026, 10:25 AM

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OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

OMEGA - 123.20.35.20.06.001 · $3,250

The OMEGA Constellation Ref. 123.20.35.20.06.001 features a distinctive stainless steel and yellow gold case with Roman numeral-engraved bezel, a captivating grey dial with date window at 3 o'clock, and an integrated yellow gold and stainless steel bracelet.

Condition: VERY GOOD with some light scratches on the bracelet
Case material: yellow gold and stainless steel
Bracelet size: ~7"
Bracelet condition: pre-sized

Posted at

Jan 3, 2026, 5:15 AM

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Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $5,575

A rare and highly desirable 1960s Omega Constellation Ref. 14393 in 18K rose gold, featuring a silver pie-pan dial and 34mm case size.

Case size: 34mm
Year of production: 1960s
Case material: 18K rose gold

Posted at

Jan 1, 2026, 7:47 PM

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Omega Constellation C Shape - 168.017 Circa 1969 only for 775$ Shipped 🚢

Omega - 168.017 · $775

The Omega Constellation C Shape features a stainless steel 35mm case, off white dial, and automatic calibre 564 movement.

Condition: great, no major dents or scratches
Case Size: 35mm diameter
Movement: calibre 564 automatic

Posted at

Dec 30, 2025, 9:33 AM

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Omega Constellation 2-Tone Automatic 🇨🇭

Omega - Constellation Automatic · $1,000

A beautiful Omega Constellation Automatic with a 2-tone stainless steel and gold watch, featuring a matching gold dial. The watch has been timegrapher checked and is running around -17spd.

Condition: Great condition with minor signs of wear
Bracelet size: 7-8 inches
Case dimensions: 35mm diameter, 38mm lug to lug, 23mm lug width, 7mm thickness
Movement accuracy: -17 spd

Posted at

Dec 28, 2025, 9:35 PM

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Omega Globemaster Constellation 130.33.39.21.02.001

Omega - 130.33.39.21.02.001 · $4,250

Up for sale is an Omega Globemaster Constellation in great condition, featuring a stainless steel case and automatic Co-Axial Master Chronometer movement.

Condition: Great condition overall, light wear on stainless steel case
Case size: 39mm diameter
Movement type: automatic Co-Axial Master Chronometer

Posted at

Dec 27, 2025, 11:28 PM

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