Omega De Ville De Ville Byzantium Co-Axial 33.4 Co-Axial Stainless Steel / Black

Reference 7801.50.31

About this watch

The Omega De Ville 7801.50.31 Byzantium Co-Axial watch is a masterpiece of engineering, featuring the remarkable Omega Caliber 2500 automatic movement with co-axial escapement. This innovative system reduces friction between components, enhancing timekeeping precision and longevity. The sleek square shape and bold black dial make a statement, while the stainless steel case provides durability and a luxurious shine. With a water resistance of 50 meters and a comfortable fit, this watch is perfect for both formal events and casual outings. It's an investment that will elevate your style and retain its value over time.
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MSRP: $3,650
Market Price: $1,795

Key Features

  • Omega Caliber 2500 automatic movement with co-axial escapement
  • Sleek square shape and bold black dial
  • Durable stainless steel case with luxurious shine
  • Water resistance of 50 meters
  • Comfortable fit and lightweight design
  • Scratch-resistant sapphire crystal
  • Certified chronometer for precision timekeeping

Specifications

Brand
Omega
Family
De Ville
Model
De Ville Byzantium Co-Axial 33.4 Co-Axial Stainless Steel / Black
Reference
7801.50.31
Movement
2500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Co-Axial Escapement, Chronometer
Case
Stainless Steel 33.4mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

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A near-new vintage Omega De Ville quartz watch featuring a gold-tone tank-style case and crisp white dial with Roman numeral hour markers.

  • Condition: Near-NOS (new old stock)
  • Case size: 33-34mm
  • Movement type: quartz
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Jan 16, 2026, 7:33 AM
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  • Size: jumbo
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Jan 16, 2026, 7:29 AM
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[WTS] Vintage Omega De Ville 591.0153.1 Gold Plated  Cal.1387 Mesh Bracelet Women's Watch $199

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  • Condition: Preowned, with some scratches and wear
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  • Case size: [object Object]
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Jan 15, 2026, 6:45 PM
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[WTS] 1991 Omega De Ville “Île de France” ref. 196.0312 (Cal. 1430 quartz) – $355 shipped

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Omega - 196.0312 · $355
A 1991 Omega De Ville Île de France reference 196.0312 with Calibre 1430 quartz movement is available for sale.

  • Movement: Cal. 1430 quartz
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Jan 15, 2026, 9:25 AM
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[WTS] Omega De Ville Quartz – Ref. 195.2378 – $399 Shipped!

Omega De Ville Quartz – Ref. 195.2378 – $399 Shipped!

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  • Condition: vintage, shows light signs of wear
  • Case size: 33mm diameter
  • Movement type: quartz
Posted at
Jan 14, 2026, 11:53 AM
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[WTS] Omega De Ville Quartz – Ref. 195.0075 – $399 Shipped!

Omega De Ville Quartz – Ref. 195.0075 – $399 Shipped!

Omega - 195.0075 · $399
A vintage Omega De Ville quartz watch featuring a gold-plated case, clean gold dial, and refined minimalist aesthetic.

  • Condition: Pre-owned, shows light signs of wear
  • Case size: 33mm
  • Movement type: quartz
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Jan 14, 2026, 7:48 AM
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[WTS] Omega De Ville 191.0091 Honeycomb Dial Push Crown New Belt  Men's Watch $299

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  • Condition: Preowned with some wear, scratches, and marks
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  • Case material: Stainless steel
  • Band type: Aftermarket brown leather
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Jan 12, 2026, 7:30 AM
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[WTS] Omega De Ville Prestige Co-Axial Chronometer $1549 Shipped (SERVICED)

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  • Condition: Great
  • Movement type: Automatic Co-Axial calibre 2500
  • Case size: 36.5mm diameter
  • Lug to lug length: 41mm
Posted at
Jan 9, 2026, 3:31 PM
Active