Omega Constellation Constellation Co-Axial 38 White Gold / Diamond / Black

Reference 123.55.38.21.51.001

Omega Constellation Co-Axial 38 White Gold / Diamond / Black

About this watch

The Omega Constellation Co-Axial 38 (model 123.55.38.21.51.001) is an epitome of luxury and sophistication, boasting an impeccable design with a white gold case, gem-set bezel, and rich black dial. The watch features a robust automatic movement, the Omega caliber 8501, which boasts precision and innovation, including a Co-Axial escapement that reduces friction and enhances longevity. With a power reserve of approximately 60 hours, this chronometer is reliable and accurate. Its stunning design combines elegance with functionality, making it perfect for everyday wear or formal occasions. The watch displays hours, minutes, seconds, and date, while its Dauphine hands glide smoothly over the dial, providing clear visibility. With a water resistance of up to 100 meters, you can enjoy swimming, snorkeling, or other water activities without worrying about your timepiece. As a statement piece, this Omega Constellation Co-Axial 38 carries with it a legacy of excellence and a promise of reliability, making it a worthy addition to any collection.

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Key Features

White gold case
Gem-set bezel
Automatic movement (Omega caliber 8501)
Co-Axial escapement
Chronometer accuracy
Water resistance up to 100 meters
Dauphine hands

Specifications

Brand

Omega

Family

Constellation

Model

Constellation Co-Axial 38 White Gold / Diamond / Black

Reference

123.55.38.21.51.001

Movement

8501

Movement Features

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

Case

White Gold 38mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

100

Current Listings

1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

Omega - 14777 · $950

A 1962 Omega Constellation ref. 14777, also known as the 'jumbo' Connie, features a stainless-steel 37mm case and chronometer-rated cal. 561 movement. The watch has a classic look but wears noticeably larger on the wrist.

Condition: Pre-owned with signs of wear and past polish
Case size: 37mm diameter
Bracelet length: 7.75" or below
Movement: Cal. 561 automatic chronometer

Posted at

Jan 22, 2026, 4:53 PM

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IWC Mark XVIII LPP and Omega Constellation Pie Pan

IWC - Mark XVIII LPP · $2,900

A IWC Mark XVIII LPP with an aftermarket brown strap is being sold, along with an Omega Constellation Pie Pan.

Strap material: leather
Omega model: Constellation Pie Pan

Posted at

Jan 20, 2026, 5:57 PM

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1961 Omega Constellation “Jumbo” ref. 14778-61 SC w/ Cal. 551 – 37mm – Serviced Jan 2026 – $2300 shipped & insured

Omega - 14778-61 SC · $2,300

For sale is an uncommon Omega Constellation ref. 14778-61 SC, the desirable “jumbo” 37mm no-date Connie, in very strong overall condition.

Condition: very strong overall condition with a clean, original-looking dial and a freshly serviced Cal. 551
Case diameter: 37mm
Lug width: 19mm
Crystal condition: original plexiglas with a small crack near the edge at 12 o'clock

Posted at

Jan 19, 2026, 7:29 PM

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1970 Omega Constellation “C-Case” ref. 168.045 w/ Cal. 751 – Day-Date Chronometer – Fresh Jan 2026 service – WG fluted bezel – $950 shipped

Omega - 168.045 · $950

1970 Omega Constellation 'C-Case' ref. 168.045, a Day-Date Chronometer with Cal. 751, recently serviced in January 2026.

Case material: Steel
Movement: Cal. 751

Posted at

Jan 19, 2026, 8:39 AM

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2025 LNIB Omega Constellation Globemaster 39mm Blue 10/25 Ref# 130.30.39.21.03.001

Omega - 130.30.39.21.03.001 · $5,799

2025 LNIB Omega Constellation Globemaster 39mm Blue with domed Pie Pan blue dial and fluted bezel.

Condition: 9.5/10, minor cosmetic imperfections possibly
Diameter: 39mm
Water resistance: 150m
Power reserve: 60 hours

Posted at

Jan 18, 2026, 11:22 AM

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

Omega - 168.017 · $775

Up for sale is an Omega Constellation C Shape reference 168.017 from 1969, featuring a stainless steel case with a 35mm diameter and an off-white dial.

Condition: great, with a few hairline scratches
Case Size: 35mm diameter
Movement: Calibre 564, automatic

Posted at

Jan 18, 2026, 7:52 AM

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Omega Constellation 🌌 blue 1990s 35.5mm 🔥

Omega - Constellation Perpetual Date · $1,150

This Omega Constellation is a quartz perpetual date watch from the early 1990s. It features an 18k omega stamp and a blue sunburst dial that appears to shift colors depending on the angle of the light.

Movement type: quartz
Year of production: early 1990s
Case diameter: 35.5mm

Posted at

Jan 17, 2026, 7:09 PM

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Omega Constellation Globemaster Master Chronometer

Omega - 130.30.39.21.03.001 · $4,650

The Omega Constellation Globemaster 39mm is a versatile dress watch with a dark blue pie pan dial and fluted tungsten carbide bezel. It has goldilocks proportions and a beautiful 3-row bracelet.

Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
Case dimensions: 39mm x 46.7mm lug to lug x 12.6mm thick
Bracelet type: 3-row with slightly curved central links

Posted at

Mar 31, 2025, 10:32 AM

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