Omega Constellation Constellation Co-Axial 31 Yellow Gold / MOP

Reference 123.50.31.20.05.002

About this watch

The Omega Constellation Co-Axial 31 Yellow Gold / MOP is a stunning watch that embodies luxury, with its 31mm round case and exquisite mother-of-pearl dial. The self-winding movement features a Co-Axial escapement, known for enhancing precision, stability, and durability. The watch has a generous power reserve of 50 hours and is water-resistant up to 100 meters, making it suitable for swimming and shallow diving. The sapphire crystal glass is scratch-resistant, ensuring the watch maintains its pristine appearance even with daily wear. The open case back showcases the intricate workings of the movement, adding a luxurious finish. Comfortable to wear due to its well-designed bracelet, this watch adapts effortlessly to any setting, from formal events to casual days out.

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MSRP: $24,100

Market Price: $10,224

Key Features

31mm round yellow gold case
Exquisite mother-of-pearl dial with stick and dot indexes
Dauphine hands for a touch of sophistication
Sapphire crystal glass for scratch-resistance
Water-resistant up to 100 meters
50-hour power reserve self-winding movement
Co-Axial escapement for enhanced precision and durability

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 31 Yellow Gold / MOP

Reference

123.50.31.20.05.002

Movement

8521

Movement Features

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

Case

Yellow Gold 31mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

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Omega - 168.001 · $1,500

The Omega Constellation Jumbo Ref. 168.001 is a rare and underrated vintage watch with a 37mm diameter, stainless steel case, and a unique vertical brushed dial.

Condition: Good (Serviced)
Diameter: 37mm
Lug width: 19mm
Movement: Caliber 561 (24-jewel chronometer-rated automatic movement)

Posted at

Sep 3, 2025, 2:01 PM

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1973 Omega Constellation Megaquartz Ref. 196.0015 Cal. 1310 - First Omega In-House Quartz Movement | $1100

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1973 Omega Constellation Megaquartz with in-house quartz movement, one of the first of its kind.

Movement: Cal. 1310

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Sep 3, 2025, 1:43 PM

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OMEGA Constellation Chronometer Certified 168.018 with original bracelet

OMEGA - 168.018 · $1,500

This Omega Constellation Chronometer is a certified timepiece with an automatic Cal 564 movement and a stainless steel case measuring 35 x 40mm in diameter.

Condition: excellent condition
Movement type: Cal 564 Automatic
Jewels: 24
Beats per hour: 19800

Posted at

Sep 2, 2025, 9:12 PM

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[USA] omega constellation 41mm

Omega - Constellation · $3,500

A 41mm Omega Constellation is being sold for $3500 OBO.

Size: 41mm

Posted at

Sep 2, 2025, 4:56 PM

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Ultra thin OMEGA Constellation Chronometer Certified 167.021 with extra bracelet

OMEGA - 167.021 · $1,300

This Omega Constellation Chronometer is a rare ultra-thin model certified by the brand. It features an automatic movement with 24 jewels and a silver dial with original handset.

Condition: Excellent with normal signs of wear and use
Case dimensions: 33 x 39mm, thickness 8mm, 19mm lug width
Crystal condition: Acrylic crystal is free from scratches
Movement specs: Cal 712 Automatic 24 Jewels 19800 beats per hour

Posted at

Sep 2, 2025, 10:18 AM

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