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

Reference 123.55.38.20.99.001

About this watch

The Omega Constellation Co-Axial 38 is a masterpiece of luxury watchmaking, embodying elegance, precision, and sophistication. Founded in 1848, Omega has carved a niche in the industry with its innovative designs and precision engineering. The Constellation line, launched in 1952, embodies tradition with modernity. The paved diamond indexes and gem-set bezel give this watch a luxurious feel, while the white gold material adds an element of timelessness. At the core is the Omega caliber 8501 movement, renowned for its reliability and precision. With a gold rotor and 60-hour power reserve, it's designed for those who appreciate the finer things in life. The Co-Axial escapement enhances accuracy, reducing friction and ensuring longevity. This watch is not just a timekeeper; it's a piece of jewelry that can elevate any outfit. The gem-set bezel is a standout feature, dazzling in sunlight and catching the eye in dim light. The paved dial complements this with its elegant presentation, making time-telling an art form.
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Key Features

  • Automatic Omega caliber 8501 movement
  • Gold rotor and 60-hour power reserve
  • Co-Axial escapement for enhanced accuracy and durability

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 38 White Gold / Diamond / Diamond
Reference
123.55.38.20.99.001
Movement
8501
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
White Gold 38mm
Dial Color
Paved
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Omega Constellation Double Eagle Chronograph 41mm Reverse Panda Ref. 1819.51.91 - Co-Axial Cal. 3313

Omega Constellation Double Eagle Chronograph 41mm Reverse Panda Ref. 1819.51.91 - Co-Axial Cal. 3313

Omega - 1819.51.91 · $2,175
This Omega Constellation Double Eagle Chronograph features a 41mm stainless steel case, black dial, and automatic chronometer-certified movement with Co-Axial escapement. It has a reverse panda look and comes on an original integrated black rubber strap.

  • Condition: Solid, honest condition with superficial wear and light scratches
  • Case size: 41mm stainless steel
  • Diameter: 41mm
  • Bezel: black aluminum Roman numeral
Posted at
Mar 22, 2026, 8:48 PM
Active
[WTS] Omega Constellation Globemaster Annual Calendar Box & Papers

Omega Constellation Globemaster Annual Calendar Box & Papers

The Omega Constellation Globemaster Annual Calendar features a sunburst grey dial, applied hour markers, and a clean annual calendar display powered by the in-house Co-Axial Master Chronometer Caliber 8922.

  • Condition: Great pre-owned condition with light signs of careful wear
  • Case size: 41mm
  • Material: stainless steel
  • Bracelet material: stainless steel
Posted at
Mar 22, 2026, 12:30 PM
Active
[WTS] 1963 Omega Constellation Ref. 168.005 | Onyx Markers | Dog Legs Lugs | All Original | only $1400 (SERVICED)

1963 Omega Constellation Ref. 168.005 | Onyx Markers | Dog Legs Lugs | All Original | only $1400 (SERVICED)

Omega - 168.005 · $1,400
This 1963 Omega Constellation is powered by a chronometer-rated Caliber 561 movement and features an all-original configuration with stainless steel case, date at 3 o'clock, and onyx markers.

  • Condition: some hairlines but case remains sharp; dial has some light spotting
  • Movement: Caliber 561, chronometer-rated automatic
  • Case material: stainless steel
  • Dimensions: [object Object]
Posted at
Mar 22, 2026, 10:57 AM
Active
[WTS] Omega Constellation Ref. 168.003 With “Dog-Leg” Lugs | Good Condition (Serviced) | $2250

Omega Constellation Ref. 168.003 With “Dog-Leg” Lugs | Good Condition (Serviced) | $2250

Omega - 168.003 · $2,250
The Omega Constellation Ref. 168.003 features a beautifully balanced silver dial and highly sought-after dog-leg lug case, measuring 34.5mm in stainless steel with a 40mm lug-to-lug length.

  • Condition: Good, serviced condition
  • Case dimensions: 34.5mm diameter (stainless steel), 40mm lug-to-lug length, 18mm lug width
  • Movement: Omega Caliber 561 (chronometer-certified)
  • Crystal type: Plexiglass crystal (correct to the period)
Posted at
Mar 22, 2026, 12:50 AM
Active
[WTS] Omega Constellation Manhattan 168.0075 18k Bezel Two Tone Watch 35.5mm - $1300 SHIPPED

Omega Constellation Manhattan 168.0075 18k Bezel Two Tone Watch 35.5mm - $1300 SHIPPED

Omega - 168.0075 · $1,300
Up for sale is this stunning Omega Constellation Manhattan Automatic watch, with a gold champagne dial and a classic vintage dress watch design.

  • Condition: Great mechanical condition
  • Case size: 35.5mm diameter
  • Material: Stainless steel and solid 18k yellow gold
  • Movement: Omega Cal 1111
Posted at
Mar 21, 2026, 8:05 PM
Active
[WTS] Omega Constellation Kalekadora Mini Ladies 1535.73, Factory Diamonds, W/ Card

Omega Constellation Kalekadora Mini Ladies 1535.73, Factory Diamonds, W/ Card

Omega - 1535.73 · $999
The Omega Constellation Kalekadora Mini is a ladies' watch featuring a pink mother-of-pearl dial and a diamond bezel.

  • Condition: Excellent condition
  • Case size: ~17x23mm
  • Movement: Quartz
  • Dial color: Pink MOP
Posted at
Mar 21, 2026, 12:47 PM
Active
[WTS] Excellent Omega Steel ‘Pie Pan’ Constellation Dog-Legged Lugs Onyx Markers - Ref. 168.005 - Caliber 561 Automatic Date - From 1966 - $2500 Shipped & Duties Covered

Excellent Omega Steel ‘Pie Pan’ Constellation Dog-Legged Lugs Onyx Markers - Ref. 168.005 - Caliber 561 Automatic Date - From 1966 - $2500 Shipped & Duties Covered

Omega - 168.005 · $2,500
A stunning Omega Constellation 'Pie Pan' with a sunburst dial and caliber 561 automatic movement. The case is sharp and retains its original beveled angles, and the observatory emblem on the case is crisp.

  • Condition: Excellent, unpolished
  • Movement: Caliber 561 Automatic Date
  • Case size: 35mm (excluding crown)
  • Water resistance: Not specified
Posted at
Mar 21, 2026, 11:56 AM
Active
[WTS] 1962 Omega Constellation ref. 14777 Chronometer Cal. 531 w/ crosshair dial and BOR braclet - 'Jumbo' 37mm case - $1250 shipped

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

Omega - 14777 · $950
This 1962 Omega Constellation ref. 14777 features a 37mm stainless-steel case, chronometer-rated cal. 561 movement, and an original champagne dial with crosshair design.

  • Condition: Shows signs of wear and past polish, but still presents well on wrist
  • Case Size: 37mm
  • Diameter Excluding Crown: true
  • Lug Shape: decent
Posted at
Mar 18, 2026, 9:06 AM
Active
[WTS] 2025 Omega Constellation 41mm Steel Meteorite Dial 131.30.41.21.99.001 Full Set

2025 Omega Constellation 41mm Steel Meteorite Dial 131.30.41.21.99.001 Full Set

This Omega Constellation features a 41mm stainless steel case, black ceramic bezel with liquid metal Roman numerals, meteorite dial with black PVD hands & markers, and a stainless steel bracelet. The watch is from 2025 and comes in full set condition.

  • Condition: Nice preowned condition with some light scratches on the case and bracelet.
  • Case material: stainless steel
  • Bezel material: black ceramic
  • Dial description: meteorite dial
Posted at
Mar 17, 2026, 6:55 PM
Active