Omega Constellation Constellation Co-axial 35 Yellow Gold / Diamond / Diamond Supernova

Reference 123.55.35.20.55.001

About this watch

The Omega Constellation Co-axial 35 Yellow Gold / Diamond / Diamond Supernova is a luxurious timepiece that embodies elegance, precision, and craftsmanship. This stunning watch combines exceptional craftsmanship with a dazzling aesthetic, featuring a radiant yellow gold case, sparkling diamond accents, and a mother-of-pearl dial. The Omega caliber 2403 movement is an evolution of the renowned caliber 2500, specifically designed without a date function for optimal performance. It incorporates a Co-Axial escapement, which significantly reduces friction among the moving parts, leading to improved accuracy and longevity. With a power reserve of approximately 48 hours and a frequency of 25,200 vibrations per hour, this movement is engineered for performance. The chronometer certification guarantees that it meets Omega's strict standards for precision, ensuring your timepiece will keep ticking accurately day in and day out. This watch isn't just a statement; it's an heirloom, a piece of art that showcases the brand's sophistication and elegance. Whether you're wearing it with a casual outfit or a formal dress, this watch elevates your style effortlessly.
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Key Features

  • Omega caliber 2403 movement
  • Co-Axial escapement for improved accuracy and longevity
  • Radiant yellow gold case with diamond accents
  • Mother-of-pearl dial with gem-set indexes
  • Chronometer certification for precision timekeeping
  • Water resistance of up to 100 meters
  • Luxurious yellow gold bracelet

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-axial 35 Yellow Gold / Diamond / Diamond Supernova
Reference
123.55.35.20.55.001
Movement
2403
Movement Features
  • Hours, Minutes, Seconds
  • Co-Axial Escapement, Chronometer
Case
Yellow Gold 35mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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

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

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
Active
[WTS] 2025 LNIB Omega Constellation Globemaster 39mm Blue 10/25 Ref# 130.30.39.21.03.001

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

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
Active
[WTS] Omega Constellation C Shape - 168.017 Circa 1969 only for 775$ Shipped 🚢

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
Active
[WTS] Omega Constellation 🌌 blue 1990s 35.5mm 🔥

Omega Constellation 🌌 blue 1990s 35.5mm 🔥

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
Active
[WTS] Timeless Gold Elegance – Omega Constellation 10k Gold-Filled ✨

Timeless Gold Elegance – Omega Constellation 10k Gold-Filled ✨

Omega - Constellation · $699
This Omega Constellation in 10k gold-filled is a classic watch with understated luxury and timeless style, perfect for everyday wear.

  • Condition: Pre-owned with new battery
  • Case Size: 34mm diameter
  • Material: 10k gold-filled
  • Strap: High-quality AM strap
Posted at
Jan 14, 2026, 1:49 AM
Active
[WTS] Omega Constellation linen dial ref 168017 cal 564

Omega Constellation linen dial ref 168017 cal 564

Omega - 168017 · $4,000
This Omega Constellation features a gold linen dial and comes equipped with an automatic movement powered by caliber 564. It's ready to be worn with its new generic strap and buckle.

  • Condition: Pre-owned, requires servicing
  • Movement: caliber 564
  • Functions work: yes all functions are working
Posted at
Jan 12, 2026, 12:05 PM
Active
[WTS] 1958 Omega Constellation ‘Pie Pan’ Arrowhead Ref. 2852-1SC | Good Condition (Serviced) | $2850

1958 Omega Constellation ‘Pie Pan’ Arrowhead Ref. 2852-1SC | Good Condition (Serviced) | $2850

Omega - 2852-1SC · $2,810
The Omega Constellation 'Pie Pan' Arrowhead Ref. 2852-1SC is one of the most sought-after and distinctive Constellation references from the mid-1950s. This particular example features the iconic 'Pie-Pan' dial with large applied arrowhead hour markers, often referred to by collectors as 'Arrowhead' indices.

  • Condition: Good, serviced
  • Case diameter: 34.5mm (excluding crown)
  • Lug-to-lug distance: 43.5mm
  • Thickness: 11mm
Posted at
Jan 12, 2026, 10:11 AM
Active