Omega Constellation Constellation Automatic 27.5 My Choice Stainless Steel / Grey

Reference 1591.51.00

About this watch

The Omega Constellation Automatic 27.5 My Choice exudes elegance and sophistication, blending classic elements with modern aesthetics to create a timeless design. Its round case, measuring 27.5 mm in diameter, is perfect for those who appreciate a more compact watch, while the sleek stainless steel construction adds a touch of sophistication. The grey dial is understated yet captivating, adorned with stick and dot indexes offering a minimalist look that's easy to read at a glance. Equipped with the Omega Caliber 2520, this watch boasts a self-winding movement that's both reliable and precise, featuring an analog display with straightforward hour, minute, and second hands complemented by a date function. The rhodium-plated finish on the movement enhances aesthetics while contributing to durability. The stainless steel case is robust, giving it the durability to withstand daily wear, protected by high-quality sapphire glass for scratch resistance.
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Key Features

  • Round 27.5mm stainless steel case
  • Grey dial with stick and dot indexes
  • Omega Caliber 2520 automatic movement
  • 42-hour power reserve
  • Analog display with date function
  • Rhodium-plated finish for durability
  • Sapphire glass for scratch resistance
  • 30m water resistance

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Automatic 27.5 My Choice Stainless Steel / Grey
Reference
1591.51.00
Movement
2520
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 27.5mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Omega Constellation 2-Tone Automatic 🇨🇭

Omega Constellation 2-Tone Automatic 🇨🇭

This beautiful Omega Constellation Automatic is a 2-tone stainless steel and gold watch with a matching gold dial. It has a stainless steel bracelet that can fit wrists up to 8 inches in diameter.

  • Condition: Great condition with minor signs of wear
  • Case diameter: 35mm (without crown)
  • Lug to lug: 38mm
  • Lug width: 23mm
Posted at
Dec 14, 2025, 9:08 PM
Active
[WTS] Omega Constellation 168.017 (1966)

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

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

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

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

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

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