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

Reference 127.15.27.20.55.001

About this watch

The Omega Constellation Co-Axial Master Chronometer 27 Small Seconds is a stunning blend of elegance, functionality, and innovative technology. This timepiece combines traditional elegance with modern technology, featuring a high-quality stainless steel case, a Mother of Pearl dial, diamond-set indexes and bezel, and a robust stainless steel bracelet. The watch boasts a water resistance rating of 100 meters, making it suitable for everyday wear without the anxiety of water damage. At the core of this magnificent watch is the Omega caliber 8704 movement, certified as a Master Chronometer by METAS, featuring a Co-Axial escapement that enhances accuracy and reduces friction. The watch includes a date function, a power reserve of 50 hours, and a secure clasp to ensure it stays on your wrist. Whether you’re a seasoned watch collector or a first-time buyer, this timepiece is sure to impress with its exquisite design and impressive movement.
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MSRP: $10,650
Market Price: $3,336

Key Features

  • Omega caliber 8704 movement
  • Master Chronometer certified by METAS
  • 100m water resistance
  • Stainless steel case and bracelet
  • Mother of Pearl dial with diamond-set indexes and bezel
  • 50-hour power reserve
  • Date function

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Diamond / MOP
Reference
127.15.27.20.55.001
Movement
8704
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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A sophisticated timepiece featuring a distinctive stainless steel and yellow gold case with Roman numeral-engraved bezel, grey dial with date window at 3 o'clock, powered by OMEGA's Co-Axial Calibre 2500 movement.

  • Condition: VERY GOOD (some light scratches on bracelet)
  • Case materials: stainless steel and yellow gold
  • Bracelet size adjustment: ~7" wrist
  • Contents included: box, papers, serial hang tag, spare links
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A stainless steel Omega Constellation C Shape from 1969 featuring a 35mm case, an off white dial, and automatic movement calibre 564. The watch has no major dents or scratches and keeps accurate time.

  • Condition: Great, with a few hairline scratches
  • Case Size: 35mm diameter
  • Dial Color: off white
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  • Condition: Great, minor signs of wear
  • Case size without crown: 35mm
  • Lug to lug: 38mm
  • Lug width: 23mm
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Dec 21, 2025, 7:48 PM
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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
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Dec 21, 2025, 9:26 AM
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  • Condition: Excellent condition, with light wear, scratches and marks
  • Case material: 18K Gold / Stainless steel
  • Movement type: Chronometer
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  • Crown size: 35-36mm
  • Movement type: cal 631
  • Case material: rose gold
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  • Case size: 36mm
  • Crystal type: sapphire crystal
  • Bracelet length: up to 7.25 inches
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  • 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
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