Omega Constellation Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Yellow Gold / MOP

Reference 127.20.27.20.55.002

About this watch

The Omega Constellation Co-Axial Master Chronometer 27 is a masterpiece of luxury watchmaking. This stunning timepiece boasts a petite yet bold presence with its 27mm diameter, crafted from high-quality stainless steel and yellow gold. The white Mother of Pearl dial is a work of art, featuring gem-set indexes that add a touch of opulence. The Co-Axial escapement technology ensures precision and longevity, while the Master Chronometer certification guarantees accuracy and resistance to magnetic fields up to 15,000 gauss. With its 100m water resistance and comfortable 17mm lug width, this watch is perfect for everyday wear. Whether you're a seasoned collector or looking for a special piece to mark an occasion, the Constellation's luxurious appearance and durability make it a compelling choice.
Buy Now on Jomashop
This is an affiliate link
MSRP: $9,300
Market Price: $5,324

Key Features

  • 27mm diameter stainless steel and yellow gold case
  • White Mother of Pearl dial with gem-set indexes
  • Co-Axial escapement technology for precision and longevity
  • Master Chronometer certification for accuracy and resistance to magnetic fields
  • 100m water resistance
  • Comfortable 17mm lug width
  • Date function and small seconds hand

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Yellow Gold / MOP
Reference
127.20.27.20.55.002
Movement
8704
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1971 Omega Constellation Chronometer C-Case ref. 168.0056 w/ Cal. 1011 – serviced Dec 2025 – full original bracelet – $1150 ALL IN shipped

1971 Omega Constellation Chronometer C-Case ref. 168.0056 w/ Cal. 1011 – serviced Dec 2025 – full original bracelet – $1150 ALL IN shipped

Omega - 168.0056 · $1,150
A vintage 1971 Omega Constellation Chronometer in the classic C-Case with a clean dial and full original bracelet.

  • Condition: Excellent condition, with a few scratches on the crystal
  • Calibre: Cal. 1011 (automatic)
  • Case Size: 35mm (excluding crown)
  • Lug Width: 19mm
Posted at
Dec 21, 2025, 9:26 AM
Active
[WTS] Omega Constellation diamond Dail Gold Bazel Ref : 168.0062.

Omega Constellation diamond Dail Gold Bazel Ref : 168.0062.

Omega - 168.0062 · $1,400
Up for sale is an Omega Constellation diamond dial watch in 18k gold bezel, featuring a chronometer movement and measuring 37mm case width. It's in excellent condition with some signs of wear.

  • Condition: Excellent condition, with light wear, scratches and marks
  • Case material: 18K Gold / Stainless steel
  • Movement type: Chronometer
Posted at
Dec 21, 2025, 8:20 AM
Active
[WTS] Omega constellation 🌌 Gerald Genta

Omega constellation 🌌 Gerald Genta

Omega - Constellation · $950
This Omega Constellation is a vintage watch featuring a 1960s cal 631 movement, accompanied by a rose gold movement. It has a case diameter of approximately 35-36mm.

  • Crown size: 35-36mm
  • Movement type: cal 631
  • Case material: rose gold
Posted at
Dec 20, 2025, 5:53 PM
Active
[WTS] Omega Constellation 🌌 blue dial .

Omega Constellation 🌌 blue dial .

Omega - Constellation · $980
A 1990s Omega Constellation features a blue dial with changing color depending on the angle, housed in a 36mm case with sapphire crystal.

  • Case size: 36mm
  • Crystal type: sapphire crystal
  • Bracelet length: up to 7.25 inches
Posted at
Dec 19, 2025, 10:54 PM
Active
[WTS] Omega Constellation. Globemaster. Annual Calendar. 🎁

Omega Constellation. Globemaster. Annual Calendar. 🎁

A Omega Constellation Globemaster Annual Calendar watch, featuring a 41mm coaxial automatic movement.

  • Case Size: 41mm diameter
  • Movement Type: Coaxial Automatic
Posted at
Dec 19, 2025, 2:07 PM
Active
[WTS] Omega Constellation C Case 168.017 Cal 564, Serviced - $790

Omega Constellation C Case 168.017 Cal 564, Serviced - $790

Up for sale is my Omega Constellation C Case 168.017 Cal 564 in good condition, featuring a 35-36mm case size.

  • Condition: Good condition with some signs of aging
  • Case Size: 35-36mm
  • Bezel Condition: High polished with light hairlines
  • Caseback Condition: Polished by previous owner
Posted at
Dec 18, 2025, 8:42 PM
Active
[WTS] Omega Constellation 196.0071 – FaceTime / other Verification Available – $200 Shipped

Omega Constellation 196.0071 – FaceTime / other Verification Available – $200 Shipped

Omega - 196.0071 · $200
The Omega Constellation 196.0071 is being sold, with the seller offering FaceTime or other verification methods.

  • Verification method: FaceTime / other
Posted at
Dec 18, 2025, 1:07 PM
Active
[WTS] Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $5,575
This is a rare 1960s Omega Constellation in 18K rose gold with a silver pie-pan dial. The watch has a unique character and classic proportions, suitable for both men and women.

  • Condition: Beautiful condition with strong, well-defined edges and an exceptionally clean period-correct pie-pan silver dial.
  • Case Size: 34mm
  • Year: 1960s
  • Material: 18K rose gold
Posted at
Dec 17, 2025, 5:47 PM
Active
[WTS] Omega Constellation Globemaster – New – 2025

Omega Constellation Globemaster – New – 2025

The Omega Constellation Globemaster features a modern design with a coin-edge bezel and classic pie-pan dial inspired by original Constellation models of the 1950s, powered by Omega's Co-Axial Master Chronometer Caliber 8900.

  • Condition: Unworn/New
  • Case size: 39mm
  • Material: stainless steel
  • Diameter: 39mm
Posted at
Dec 16, 2025, 12:54 PM
Active