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

Reference 7801.50.31

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

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

[WTS] Omega De Ville Prestige Co-Axial Chronometer $1549 Shipped (SERVICED)

Omega De Ville Prestige Co-Axial Chronometer $1549 Shipped (SERVICED)

Omega - 4574.50.00 · $1,549
A stunning Omega De Ville Prestige Co-Axial Chronometer watch with a Greyish Black sunburst dial and high-end build quality.

  • 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
View listing on r/WatchExchange
[WTS] OMEGA De Ville 146.017 | Gold Dial Chronograph | Works Perfectly

OMEGA De Ville 146.017 | Gold Dial Chronograph | Works Perfectly

OMEGA - De Ville 146.017 · $3,150
A rare Omega De Ville Chronograph with Cal 930 movement, featuring semi quickset date and chronograph functions. Estimated production year is 1969 or 1970.

  • Condition: Excellent working condition, serviced 2 years ago
  • Movement: Cal 930
  • Winding type: Manual wind
Posted at
Jan 8, 2026, 11:20 AM
Active
View listing on r/WatchExchange
[WTS] OMEGA De Ville Cal.625 Ref 111.0107 New Belt Classic Men's Watch $350

OMEGA De Ville Cal.625 Ref 111.0107 New Belt Classic Men's Watch $350

Omega - 111.0107 · $350
A De Ville Cal.625 men's watch from Omega, featuring a manual winding movement and gold plated stainless steel case.

  • Condition: In good condition with little wear and marks
  • Case Width: 33mm (without crown)
  • Band Size: Total Length Approx. 23cm
  • Movement: Cal.625
Posted at
Jan 4, 2026, 3:03 AM
Active
View listing on r/WatchExchange
[WTS] Omega De Ville dress watch 195.0075 - Cal. 1378

Omega De Ville dress watch 195.0075 - Cal. 1378

Omega - 195.0075 · $400
This is an elegant, ultra-thin dress watch featuring the reliable Omega Caliber 1378 Swiss quartz movement and a crisp white dial.

  • Condition: Good vintage condition
  • Movement Type: Caliber 1378 Swiss quartz
  • Case Diameter: 32.5mm (excluding crown)
  • Lug Width: 18mm
Posted at
Jan 3, 2026, 1:38 AM
Active
View listing on r/WatchExchange
[WTS] Omega De Ville Prestige Automatic Co Axial Chronometer - ONLY $999 SHIPPED

Omega De Ville Prestige Automatic Co Axial Chronometer - ONLY $999 SHIPPED

Omega - 424.10.37.20.02.001 · $999
This Omega De Ville Prestige Automatic Chronometer features a white dial and Omega 2500 Co Axial automatic movement in a 37mm case size.

  • Condition: Very good condition
  • Case size: 37mm
  • Lug width: 19mm
Posted at
Dec 31, 2025, 6:05 PM
Active
View listing on r/WatchExchange
[WTS] Omega De Ville Quartz "TV Dial" Ref. 192.0030 ($400)

Omega De Ville Quartz "TV Dial" Ref. 192.0030 ($400)

Omega - 192.0030 · $400
This Omega De Ville Quartz 'TV Dial' is a quintessential piece of late-1970s design and a stunning example of the 'Quartz Revolution'. It features an iconic cushion-shaped case, a pristine champagne sunburst dial, and a unique movement with a traveler hour hand.

  • Case Size: 35mm x 35mm
  • Case Material: 20 Micron Gold Plated / Stainless Steel Back
  • Dial Color: champagne sunburst
Posted at
Dec 31, 2025, 2:58 PM
Active
View listing on r/WatchExchange
[WTS] Excellent Omega De Ville Prestige Ref 196.1150 New Belt Cal 1532 Mens Watch $500

Excellent Omega De Ville Prestige Ref 196.1150 New Belt Cal 1532 Mens Watch $500

Omega - 196.1150 · $500
This Omega De Ville Prestige Ref 196.1150 features a stainless steel case, Quartz Cal 1532 movement, and comes in excellent condition.

  • Condition: Preowned, with little wear and marks
  • Case width: 34mm (without crown)
  • Band type: Aftermarket black leather band
  • Band size: Total length approx 23 cm
Posted at
Dec 27, 2025, 12:29 AM
Active
View listing on r/WatchExchange
Omega 424.10.40.20.02.001 De Ville Prestige Co-Axial 39.5MM Silver Box & Papers

Omega 424.10.40.20.02.001 De Ville Prestige Co-Axial 39.5MM Silver Box & Papers

Omega - 424.10.40.20.02.001 · $2,575
This Omega De Ville Prestige Co-Axial is a vintage watch featuring a silver dial, housed in a 39.5MM case.

  • Condition: Excellent
  • Case size: 39.5MM diameter
  • Movement: Co-Axial
Posted at
Mar 28, 2025, 11:33 PM
Active
View listing on RolexForums
Omega De Ville Prestige 39.5mm 424.13.40.20.02.003 Mint Complete

Omega De Ville Prestige 39.5mm 424.13.40.20.02.003 Mint Complete

Omega - 424.13.40.20.02.003 · $2,500
This Omega De Ville Prestige is a 2023 dated set in great shape, perfect for those looking for a complete and mint condition watch.

  • Condition: Mint
  • Diameter: 39.5mm
  • Year: 2023
Posted at
Mar 27, 2025, 3:02 PM
Active
View listing on RolexForums