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

[WTS] (Price reduced) 1966 Omega Constellation

(Price reduced) 1966 Omega Constellation

Omega - 168.005 · $2,400
A 1966 Omega Constellation in original condition featuring the 'dog leg' lugs and a cross hair dial. The watch remains in gorgeous condition with only minor scratches.

  • Condition: UNPOLISHED/UNTOUCHED with minor scratches on the case and caseback
  • Case material: Solid gold bezel + case back medallion, gold-capped lugs over solid stainless steel
  • Movement serial #: 24501601
  • Jewels: 24 jewels
Posted at
Apr 26, 2026, 10:14 AM
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[WTS] Omega Constellation Cal. 561 Ref. 168.005 | Great Condition (Serviced) | $1650

Omega Constellation Cal. 561 Ref. 168.005 | Great Condition (Serviced) | $1650

Omega - 168.005 · $1,650
The Omega Constellation ref. 168.005 stands as one of the most iconic vintage dress watches of the mid-1960s, admired for its balanced design and enduring appeal.

  • Condition: Great serviced condition with minor scratches and patina spots
  • Dial color: flat silver
  • Case size: 34mm diameter
  • Crystal material: plexiglass
Posted at
Apr 25, 2026, 11:56 PM
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[WTS] asking 800$ - Vintage Omega Constellation Manhattan Mens Date Watch (Working Condition)

asking 800$ - Vintage Omega Constellation Manhattan Mens Date Watch (Working Condition)

Omega - Manhattan Mens Date Watch · $800
a vintage men's date watch from Omega's Constellation Manhattan collection

  • Condition: Working Condition
  • Price range: $800$
  • Vintage: true
Posted at
Apr 25, 2026, 8:11 PM
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[WTS] Omega Omega Constellation Ref. 14393/4 SC – 18K Solid Gold – 18K Gold Pie Pan Dial Price : 6000$

Omega Omega Constellation Ref. 14393/4 SC – 18K Solid Gold – 18K Gold Pie Pan Dial Price : 6000$

Omega - 14393/4 SC · $6,000
A stunning Omega Constellation Ref. 14393/4 SC watch in solid 18K yellow gold features a Pie Pan Dial, automatic movement Caliber 564 and classic star emblem above 6 o'clock.

  • Condition: Excellent vintage condition
  • Case material: 18K Solid Gold
  • Dial material: 18K Gold
  • Movement: Caliber 564, Automatic
Posted at
Apr 25, 2026, 1:24 PM
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[WTS] Omega Constellation Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean

Omega Constellation Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean

Omega - 396.1070 · $850
This is a vintage Omega Constellation Manhattan watch featuring a silvery white dial, blue hands and dial printing. The 33mm diameter case has a tonneau shape and wide integrated bracelet.

  • Condition: Very good
  • Case diameter: 33mm
  • Lug to lug length: 35.2mm
  • Bracelet size: ~6.75" wrist
Posted at
Apr 25, 2026, 8:32 AM
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[WTS] Omega Constellation 1968 with white gold bezel and 'linen' dial

Omega Constellation 1968 with white gold bezel and 'linen' dial

Omega - Constellation 1968 · $1,299
A used 1968 Omega Constellation featuring an automatic caliber 564 movement with a quickset date, white gold bezel, and 'linen' dial.

  • Condition: 7.5/10
  • Movement: caliber 564
  • Crystal: unsigned with minor scratches
  • Dial marks: slight marks visible under strong artificial light
Posted at
Apr 25, 2026, 3:06 AM
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[WTS] Omega Constellation Pie Pan Gold Filled Reference 14902 SERVICED

Omega Constellation Pie Pan Gold Filled Reference 14902 SERVICED

A vintage Omega Constellation Pie Pan from 1966, featuring a gold-filled case and serviced recently.

Posted at
Apr 24, 2026, 1:31 PM
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[WTS] 1961 Omega Jumbo Constellation ref. 14778-61 SC w/ Cal. 551 – Uncommon 37mm gold-capped case – $2,300 shipped all-in

1961 Omega Jumbo Constellation ref. 14778-61 SC w/ Cal. 551 – Uncommon 37mm gold-capped case – $2,300 shipped all-in

Omega - 14778-61 SC · $2,300
This Omega Constellation is an uncommon 'jumbo' 37mm no-date model with a gold-capped case and Cal. 551 movement. It has been freshly serviced in Jan 2026.

  • Condition: Very strong overall condition with a clean, original-looking dial and freshly serviced Cal. 551 movement
  • Case diameter: 37mm
  • Lug width: 19mm
  • Movement caliber: Cal. 551
Posted at
Apr 24, 2026, 10:11 AM
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[WTS] Omega Constellation 168.001 “Jumbo” 37MM Gold Capped - $2,550

Omega Constellation 168.001 “Jumbo” 37MM Gold Capped - $2,550

Omega - 168.001 · $2,550
This Omega Constellation 'Jumbo' is a rare 37MM model released only to specific Asian markets, featuring a Calibre 561 Automatic Chronometer movement and a 14k Constellation emblem on its stainless case back. The watch appears original with all the appropriate appliques and indices, and has been well-maintained throughout its years. It's now available for sale at $2,550.

  • Condition: Excellent condition for its age
  • Case size: 37MM diameter
  • Movement: Calibre 561 Automatic Chronometer (24 jewels, 19,800 vph)
  • Functions: Hours, minutes, central sweep-second hand, date (semi-quickset)
Posted at
Apr 23, 2026, 7:11 PM
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