Omega Constellation Constellation Quadra Quartz 19.3 Yellow Gold / MOP

Reference 1631.7656.

About this watch

The Omega Constellation Quadra Quartz 1631.7656 is a stunning piece that beautifully merges functionality with style, featuring luxurious yellow gold and mother of pearl design, accurate and reliable quartz movement, and sapphire glass for durability. This watch appeals to those seeking elegance and sophistication, perfect for formal events or everyday wear. With its modern design and rich heritage, it stands as a testament to Omega's craftsmanship and innovation.
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Key Features

  • Luxurious yellow gold casing
  • Mother of pearl (MOP) dial with iridescent surface
  • Omega caliber 1376 quartz movement with 30,000-second power reserve
  • Sapphire glass for exceptional hardness and scratch resistance
  • Water resistance of 30 meters
  • Adjustable bracelet for a snug fit
  • Durable construction and lightweight design

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Quadra Quartz 19.3 Yellow Gold / MOP
Reference
1631.7656.
Movement
1376
Movement Features
  • Hours, Minutes
Case
Yellow Gold 19.3mm
Dial Color
White
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Omega Constellation Day Date - Watch Only - $750 Free 🚢

Omega Constellation Day Date - Watch Only - $750 Free 🚢

A 1980s Omega Constellation Day Date watch with a black dial and steel case, featuring a quartz movement.

  • Dial Material: Black
  • Case Material: Steel
  • Size: 33mm diameter
Posted at
Nov 11, 2025, 8:11 AM
Active
[WTS] 60s Omega Constellation Ref. 168.005 | Pancake Patina Dial | Dog Legs Lugs | All Original Parts | $1680 (SERVICED)

60s Omega Constellation Ref. 168.005 | Pancake Patina Dial | Dog Legs Lugs | All Original Parts | $1680 (SERVICED)

Omega - 168.005 · $1,680
This Omega Constellation 168.005 is a mid-century dress watch with a rich cream dial and crisp applied indices, embodying the quiet elegance of Swiss watchmaking's golden era.

  • Condition: serviced
  • Case Diameter: 34mm
  • Case Thickness: 11mm
  • Lug To Lug Length: 42mm
Posted at
Nov 11, 2025, 7:44 AM
Active
[WTS] Omega Constellation Pie Pan Ref. 168.005 | Excellent Condition (Serviced) | $2500

Omega Constellation Pie Pan Ref. 168.005 | Excellent Condition (Serviced) | $2500

Omega - 168.005 · $2,500
The Omega Constellation Pie Pan Ref. 168.005 is a quintessential 1960s dress watch that embodies Omega’s pursuit of precision and elegance during the golden age of Swiss watchmaking.

  • Condition: Excellent
  • Caliber: Omega Caliber 561
  • Jewels: 24 jewels
  • Chronometer certification: Yes
Posted at
Nov 10, 2025, 10:10 PM
Active
[WTS] Omega Constellation Ref. 168.018 – Newly Serviced + New Crystal – $880 OBO (Shipping Included)

Omega Constellation Ref. 168.018 – Newly Serviced + New Crystal – $880 OBO (Shipping Included)

Omega - 168.018 · $880
A beautiful example of the classic Omega Constellation Automatic Chronometer, reference 168.018, powered by the Caliber 561 movement.

  • Condition: Newly serviced, excellent condition
  • Caliber: Caliber 561
  • Case material: Gold-capped stainless steel
  • Diameter: 34mm
Posted at
Nov 10, 2025, 4:03 PM
Active
[WTS] Omega Constellation Manhattan $499 OBO

Omega Constellation Manhattan $499 OBO

A gorgeous 80s Omega Constellation with a brushed dial and blued hands is being sold at a reduced price.

  • Wrist size limit: 6.25in
  • Bracelet length: short
Posted at
Nov 10, 2025, 2:56 PM
Active
[WTS] Omega Constellation Lady 595.0102 only for 299$ Shipped 🚢

Omega Constellation Lady 595.0102 only for 299$ Shipped 🚢

Omega - 595.0102 · $299
Up for sale is an Omega Constellation Lady ladies watch featuring a stainless steel case with a 22mm case size, clean condition, and quartz movement working perfectly fine.

  • Condition: Good with some hairline scratches on the case and signs of aging on the dial
  • Case size: 22mm diameter
  • Movement type: Quartz
Posted at
Nov 10, 2025, 8:55 AM
Active
[WTS] Omega Constellation Ref 168.106 Cal.751 w/ Signed Beads of Rice Bracelet ($880 Shipped)

Omega Constellation Ref 168.106 Cal.751 w/ Signed Beads of Rice Bracelet ($880 Shipped)

Omega - 168.016 · $880
Up for sale is an Omega Constellation from ~1970, featuring a Cal. 751 movement and a signed beads of rice bracelet.

  • Condition: Service history is unknown, but externally looks good considering its age
  • Movement: Cal.751
  • Case Size: 35mm
  • Bracelet: Signed Beads of Rice bracelet
Posted at
Nov 10, 2025, 1:38 AM
Active
[WTS] Omega Constellation Chrono 2 Tone 34mm (AKA the Manhattan) $850

Omega Constellation Chrono 2 Tone 34mm (AKA the Manhattan) $850

This Omega Constellation Chronograph features a stainless steel case with an 18k gold bezel and an integrated two-tone steel & gold link bracelet. The watch is powered by an Omega quartz chronograph movement that runs strong and keeps good time.

  • Condition: Overall good vintage condition, normal wear from age
  • Case Material: Stainless steel
  • Bezel Material: 18k gold
  • Bracelet Material: Two-tone steel & gold link
Posted at
Nov 9, 2025, 4:13 PM
Active
[WTS] Omega Constellation. Automatic. $1125 only !!

Omega Constellation. Automatic. $1125 only !!

Omega - Constellation · $1,125
A Omega Constellation automatic watch is being sold for $1125, including shipping.

  • Shipping cost included: true
  • Shipping method: Fedex with insurance
  • Shipping available globally: true
Posted at
Nov 9, 2025, 12:19 PM
Active