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.

Buy Now on Jomashop

This is an affiliate link

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

Omega Constellation 168.017 (1966)

Omega - 168.017 · $900

This Omega Constellation features a beautiful original 'C-Shape' dial and is accompanied by its genuine Omega 518 brick bracelet.

Condition: Good condition overall
Movement: Cal. 561
Bracelet: Genuine Omega 518 brick bracelet

Posted at

Dec 12, 2025, 10:03 AM

Active

View listing on r/WatchExchange

REDUCED Omega Constellation Gold Cap ( REF:168.018 ) $750 Shipped.....

Omega - 168.018 · $750

A beautiful example of the classic Omega Constellation Automatic Chronometer from the late 1960s. It features an original silver sunburst dial with applied gold markers and date at 3 o'clock, a gold-capped stainless steel case (34mm), and an iconic Observatory medallion on the caseback.

Condition: Excellent condition, freshly serviced
Case size: 34mm diameter
Movement: Caliber 561
Crystal: Acrylic crystal

Posted at

Dec 12, 2025, 8:28 AM

Active

View listing on r/WatchExchange

OMEGA Constellation Ref. 123.20.35.20.06.001 Yellow Gold Two-Tone - COMPLETE SET!

OMEGA - 123.20.35.20.06.001 · $3,250

The OMEGA Constellation Ref. 123.20.35.20.06.001 is a sophisticated timepiece that celebrates the enduring legacy of OMEGA's iconic Constellation collection, featuring a distinctive stainless steel and yellow gold case with Roman numerals on a polished bezel.

Condition: VERY GOOD, with some light scratches on bracelet
Case material: stainless steel and yellow gold
Bracelet size: ~7" wrist

Posted at

Dec 12, 2025, 1:09 AM

Active

View listing on r/WatchExchange

1971 Omega Constellation C-Case ref. 168.0056, gold-capped chronometer cal. 1011 – serviced Oct 2025 – $975 shipped

Omega - 168.0056 · $975

A 1971 Omega Constellation C-Case chronometer with a gold-capped stainless steel case, solid gold bezel, and warm champagne dial.

Condition: Excellent condition with normal wear from honest use
Caliber: Omega cal. 1011
Movement Service Date: Oct 2025
Case Dimensions: 40mm diameter

Posted at

Dec 11, 2025, 4:07 PM

Active

View listing on r/WatchExchange

[WTS] Omega Constellation super nice condition, complete bracelet. Cal. 751 ref. 168.045. Complete bracelet. Shipping from El Salvador, price inculdes shipping, custom fees. No trades. $1200 - find me on IG as Boldervintage.

Omega Constellation super nice condition, complete bracelet. Cal. 751 ref. 168.045. Complete bracelet. Shipping from El Salvador, price inculdes shipping, custom fees. No trades. $1200 - find me on IG as Boldervintage.

Omega - 168.045 · $1,200

This Omega Constellation is complete with its original bracelet, offering a stylish and premium accessory for any watch enthusiast.

Condition: super nice condition
Shipping Included: true
Custom Fees Included: true

Posted at

Dec 11, 2025, 12:39 PM

Active

View listing on r/WatchExchange

Omega Constellation Chronometer Quartz 198.0126 Cal.1333 Quartz Push Men watch

Omega - 198.0126 Cal.1333

Posted at

Dec 11, 2025, 3:52 AM

Active

View listing on r/WatchExchange

Omega Constellation 18K Rose Gold Silver Pie Pan Dial 1960

Omega - 14393 · $8,000

This is a very rare 1960s Omega Constellation Ref. 14393 in 18K rose gold, one of the harder to find variants due to its limited production.

Material: 18K rose gold
Production Year: 1960s

Posted at

Dec 10, 2025, 11:25 AM

Active

View listing on r/WatchExchange

1960's Omega Constellation Ref. CD 168.017 14k gold capped automatic chronometer

Omega - CD 168.017 · $900

A 1966 Omega Constellation Ref. CD 168.017 features a 14k yellow gold capped stainless steel case and a fantastic dial with a few small scratches on the crystal.

Condition: Good used condition
Year: 1966
Case material: 14k yellow gold capped stainless steel

Posted at

Dec 10, 2025, 12:00 AM

Active

View listing on r/WatchExchange

omega constellation diamond dial watch $1395

Omega - null · $1,395

Diamond dial: Diamond dial on the Omega Constellation watch

Posted at

Dec 9, 2025, 12:03 PM

Active

View listing on r/WatchExchange