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

Reference 127.25.27.20.55.001

About this watch

In the world of luxury watches, few brands stand out as prominently as Omega. Their timepieces are not just about telling time; they embody elegance, precision, and innovation. Today, we're diving deep into one of their stunning models—the Omega Constellation Co-Axial Master Chronometer 27 Small Seconds. This watch is a true masterpiece, blending modern technology with classic design. The Omega Constellation collection has long been synonymous with sophisticated elegance. Launched in 1952, this family of watches has evolved over the decades while maintaining its signature style. Each piece reflects a commitment to quality and artistry, making it a favorite among watch enthusiasts and collectors alike. At the heart of the Omega Constellation 127.25.27.20.55.001 is the remarkable Caliber 8704. This self-winding movement features the innovative Co-Axial escapement, enhancing accuracy and reducing friction. The combination of red gold and stainless steel gives this watch a striking appearance. One of the standout features of this timepiece is the Mother of Pearl (MOP) dial, displaying a mesmerizing iridescence that changes with the light. The Omega Constellation isn't just about looks; it's designed for precision. With a 50-hour power reserve and automatic winding in both directions, you can trust that it'll keep ticking even when you take it off for a couple of days.
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Key Features

  • Caliber 8704 Co-Axial Escapement Movement
  • Mother of Pearl Dial with Iridescence
  • Red Gold and Stainless Steel Case
  • Gem-Set Bezel and Indexes
  • Water Resistance up to 100m
  • 50-Hour Power Reserve and Automatic Winding
  • Small Seconds Hand at 9 o'clock Position

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Red Gold / Diamond / MOP
Reference
127.25.27.20.55.001
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

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  • Condition: Very good
  • Case Diameter: 33mm
  • Lug To Lug Length: 35.2mm
  • Bracelet Size Range: ~6.75"
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  • Condition: Good condition with wear and aging on the dial
  • Case Width: 34mm
  • Year: 1966
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  • Condition: Excellent with all original parts
  • Case material: Gold Cap case
  • Dial description: Pie-pan dial
  • Dimensions width: 34.5 mm (excluding crown)
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  • Condition: Pre-owned, unpolished, with age-related wear
  • Diameter: 33mm
  • Bracelet size: approximately 7.25 inches
  • Movement type: Swiss quartz movement with quickset date
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A 1973 Omega Constellation ref. 168.0057, powered by the automatic chronometer Cal. 1021 with quick-set day-date, and comes on its original Omega brick bracelet ref. 1040.

  • Condition: Very good condition with normal wear from age
  • Movement caliber: Cal. 1021
  • Bracelet size: fits up to approx. 7.25" wrist
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May 6, 2026, 9:15 AM
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  • 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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