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

Reference 123.20.31.20.55.002

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

About this watch

The Omega Constellation Co-Axial 31 is a masterpiece of horology, blending luxury, precision, and history. This stunning timepiece boasts an exquisite design featuring stainless steel and yellow gold, complemented by a captivating Mother of Pearl (MOP) dial that shimmers like the ocean. Underneath lies the renowned Omega caliber 8520 automatic movement, a marvel of engineering with a power reserve of 50 hours and Co-Axial escapement, reducing friction for enhanced longevity and precision. With its water resistance of 100 meters and sapphire glass protection, this watch is perfect for daily wear. The comfortable design and adjustable links ensure a secure fit, while the gem-set indexes add an opulent touch. As a true investment piece, the Omega Constellation Co-Axial 31 combines timeless aesthetics with cutting-edge technology, making it an ideal choice for watch collectors, individuals seeking precision and reliability, and fashion enthusiasts alike.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega Caliber 8520 Automatic Movement
Co-Axial Escapement with Reduced Friction
Water Resistance of 100 Meters
Sapphire Glass Protection
Mother of Pearl (MOP) Dial
Stainless Steel and Yellow Gold Construction
Gem-Set Indexes for Opulent Touch

Specifications

Brand

Omega

Family

Constellation

Model

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

Reference

123.20.31.20.55.002

Movement

8520

Movement Features

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

Case

31mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

Omega Constellation C-Case 168.0056 Rare Navy Blue Dial – $950 OBO

Omega - 168.0056 · $950

This Omega Constellation C-Case features a rare navy blue dial in a classic design, along with an original Cal. 1010 movement and a clean, original navy dial.

Condition: Good shape and ready to wear
Bracelet size: 6.3"
Max bracelet size: 7.5"
Movement: Cal. 1010

Posted at

Oct 30, 2025, 11:07 PM

Active

View listing on r/WatchExchange

[WTS] 1963 Vintage Omega Constellation Ref. 167.005 | No Date | All Original | Freshly Serviced Chronometer Cal 561 | Sharp Unpolished Dog Leg Lugs | Great Vintage Condition | $1830

1963 Vintage Omega Constellation Ref. 167.005 | No Date | All Original | Freshly Serviced Chronometer Cal 561 | Sharp Unpolished Dog Leg Lugs | Great Vintage Condition | $1830

Posted at

Oct 30, 2025, 8:29 AM

Active

View listing on r/WatchExchange

Omega Constellation Pie Pan Demi Gold Ref. 168.005 | Excellent Original Condition (with original straps and buckle, Omega red box & Serviced) | $2950

Posted at

Oct 27, 2025, 11:34 PM

Active

View listing on r/WatchExchange

Omega Constellation 168.054

Posted at

Oct 27, 2025, 12:37 PM

Active

View listing on r/WatchExchange

Omega Constellation 168.046

Posted at

Oct 27, 2025, 12:31 PM

Active

View listing on r/WatchExchange

1961 Omega Constellation (Original Box / Papers

Omega - 14393 · $1,200

This is a 1961 Omega Constellation reference 14393 with a white dome dial and original outer cardboard box. The watch has a 34mm stainless and 14k gold capped case and is powered by an automatic cal 561 movement.

Condition: Very good, with minor wear
Case Size: 34mm
Movement: Omega automatic cal 561

Posted at

Oct 26, 2025, 11:05 PM

Active

View listing on r/WatchExchange