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

Reference 123.20.31.20.05.001

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

About this watch

The Omega Constellation Co-Axial 31 is a stunning luxury watch that combines exquisite design with advanced technology. Its stainless steel and red gold case beautifully fuses style and sophistication, while the white mother-of-pearl dial catches the light in such a way that it seems to change color as you move. The Dauphine hands glide smoothly across the dial, providing both precision and style. At the heart of this watch is the remarkable Omega caliber 8520 movement, featuring the Co-Axial escapement, which reduces friction between moving parts and enhances the watch's precision. This certified chronometer has passed rigorous tests to ensure its accuracy and can be trusted to keep ticking even when you take it off for the weekend. With a water resistance of up to 100 meters, this watch is built for life! It's not just a luxury accessory; it’s a versatile companion that seamlessly transitions from a day at the office to a night out on the town. Whether you're a watch enthusiast or someone looking to make a statement, the Omega Constellation Co-Axial 31 fits the bill.

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Key Features

Omega caliber 8520 movement
Stainless steel and red gold case
White mother-of-pearl dial
Co-Axial escapement
Certified chronometer
Water resistance up to 100 meters

Specifications

Brand

Omega

Family

Constellation

Model

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

Reference

123.20.31.20.05.001

Movement

8520

Movement Features

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

Case

31mm

Dial Color

White

Crystal

Sapphire

Water Resistance

100

Current Listings

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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Price Drop! Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced 11/2025 – $1925 + shipping OBO

Omega - 168.005 · $1,925

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

Condition: Excellent for its age
Movement: cal. 561
Dial condition: excellent for its age
Lugs: dog-leg

Posted at

Apr 10, 2026, 12:48 PM

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

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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 14902 SC-61 — Pie Pan Crosshair — Cal. 561 — $1,999 Shipped (Tariff covered)

Omega - 14902 SC-61 · $1,999

Condition: Pre-owned, serviced
Case Size: 34.5mm (excluding crown)
Lug To Lug: ~42mm
Thickness: ~11mm

Posted at

Apr 9, 2026, 2:55 PM

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Omega Constellation Ref. 198.0118 Textured Dial – $650

Omega - 198.0118 · $650

Condition: fair vintage condition
Case size: 34mm (wears larger due to integrated bracelet design)
Fits wrist: ~7.5” comfortably
Bracelet material: original Omega, 10k gold filled

Posted at

Apr 8, 2026, 3:35 PM

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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

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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

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