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

Reference 127.55.27.20.55.002

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

About this watch

The Omega Constellation Co-Axial Master Chronometer 27 Small Seconds is a stunning example of luxury and precision. With its exquisite design and advanced technology, this watch is not just a tool for telling time; it’s a statement piece. The 27 mm round case crafted from luxurious yellow gold exudes opulence, while the gem-set bezel adds a touch of glamour. The shimmering mother-of-pearl (MOP) dial catches the light beautifully, creating a dance of colors that changes with every angle. The Omega caliber 8705 movement boasts a free-sprung balance and a silicon balance spring, ensuring incredible accuracy and reliability even in external magnetic fields up to 15,000 gauss. Certified by METAS as a Master Chronometer, this watch has passed rigorous testing for precision, performance, and resistance to magnetic fields. With a power reserve of 50 hours and automatic winding in both directions, this watch is built for life with a water resistance rating of 100 meters.
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Key Features

  • 27mm round yellow gold case
  • Gem-set bezel with mother-of-pearl dial
  • Omega caliber 8705 movement with free-sprung balance and silicon balance spring
  • METAS Master Chronometer certification
  • 50-hour power reserve with automatic winding in both directions
  • 100m water resistance

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Yellow Gold / Diamond / MOP
Reference
127.55.27.20.55.002
Movement
8705
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Yellow Gold 27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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[WTS] Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

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  • Condition: Beautiful condition
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  • Year: 1960s
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[WTS] 1962 Omega Constellation “Jumbo” ref. 14777 w/ cal. 561 – 37mm chronometer, serviced 11/2024 – $990 shipped

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  • Condition: Pre-owned
  • Case size: 37mm diameter
  • Movement rating: chronometer
  • Movement type: cal. 561 automatic
Posted at
Dec 1, 2025, 9:13 AM
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[WTS] 1956 Omega Constellation pie-pan ref. 2852 cal. 505, white-gold arrowheads – serviced Apr 2025 – $995 shipped

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  • Condition: Poor cosmetic shape, honest wear and surface scratches from use
  • Caliber: 505
  • Movement type: Automatic Chronometer
  • Water resistance: Not waterproof, treat as vintage watch
Posted at
Dec 1, 2025, 9:00 AM
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  • Condition: great condition with minor signs of wear
  • Bracelet size adjustability: 7-8 inches
  • Case dimensions: 35mm diameter, 38mm lug to lug, 23mm lug width, 7mm thickness
  • Service history: unknown
Posted at
Nov 29, 2025, 9:03 PM
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Omega Constellation Globemaster Master Chronometer

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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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