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

[WTS] Omega De Ville Prestige 34mm – 395 USD Shipped..

Omega De Ville Prestige 34mm – 395 USD Shipped..

The Omega De Ville Prestige is a classic dress watch featuring a clean white textured dial with Roman numerals.

  • Condition: Good overall condition
  • Case size: 34mm
  • Movement: Quartz
  • Dial type: White textured with Roman numerals
Posted at
Apr 18, 2026, 12:14 AM
Active
[WTS] Omega De Ville(Swiss Made)Quartz- Classic Elegance with a Modern Edge - 410usd

Omega De Ville(Swiss Made)Quartz- Classic Elegance with a Modern Edge - 410usd

Omega - De Ville · $410
A classic Omega De Ville watch offering elegant style and modern flair.

  • Movement: quartz
Posted at
Apr 17, 2026, 4:39 PM
Active
[WTS] 1975 Omega De Ville Manual Wind Mechanical Ultra Rare Brushed Blue Dial - 1199$ Shipped

1975 Omega De Ville Manual Wind Mechanical Ultra Rare Brushed Blue Dial - 1199$ Shipped

Omega - 111.0131 · $1,199
This 1975 Omega De Ville features a unique brushed navy blue dial that changes shades depending on the angle and lighting, accompanied by an Omega Cal. 625 manual-winding mechanical movement.

  • Condition: Pre-owned with slight damage/patina
  • Case dimensions: 29mm x 39 mm
  • Movement: Cal. 625 manual-winding mechanical movement
  • Bracelet type: Non-OEM
Posted at
Apr 17, 2026, 4:30 PM
Active
[WTS] Omega De Ville Cal.1365 Ref.195.0019 395.0812 Men Watch $325

Omega De Ville Cal.1365 Ref.195.0019 395.0812 Men Watch $325

This Omega De Ville Cal.1365 features a stainless steel case, quartz movement, and an omega calf leather band.

  • Condition: Preowned, barely any wear and marks
  • Case Width: 29mm diameter
  • Band Size: 22cm total length
  • Movement: Quartz Cal.1365
Posted at
Apr 17, 2026, 3:02 PM
Active
[WTS] 1973 Omega De Ville Ultra Thin, cabochon crown ref. 151.0039 w/ Cal. 711 – original taper-stripe dial – $800 all-in

1973 Omega De Ville Ultra Thin, cabochon crown ref. 151.0039 w/ Cal. 711 – original taper-stripe dial – $800 all-in

Omega - 151.0039 · $800
This is a clean and elegant vintage Omega De Ville Ultra Thin ref. 151.0039 with cal. 711, featuring an original taper-stripe dial, slim case, and the original cabochon crown still in place.

  • Condition: Very good condition with sharp unpolished case and only light hairline scratches from age and use.
  • Movement Caliber: Cal. 711
  • Case Diameter: 36mm
  • Lug Width: 18mm
Posted at
Apr 14, 2026, 8:33 PM
Active
[WTS] Omega De Ville Tresor - 2025 - Excellent Condition - Watch, Box, Jomashop card

Omega De Ville Tresor - 2025 - Excellent Condition - Watch, Box, Jomashop card

Omega - De Ville Tresor · $5,600
This Omega De Ville Tresor is a certified master chronometer tested to rigorous standards above COSC. It's a manual wind watch with a see-through caseback, showcasing the movement as a work of art.

  • Condition: Excellent Condition
  • Warranty: 1 year warranty through company
  • Box: Yes
  • Cards: Jomashop warranty card, Omega Pictogram card, Master Chronometer card
Posted at
Apr 14, 2026, 6:58 PM
Active
[WTS] Mint Omega De Ville Prestige 4810.30.02 Stainless Steel Classic Men's Watch  Full Set $650

Mint Omega De Ville Prestige 4810.30.02 Stainless Steel Classic Men's Watch Full Set $650

Omega - 4810.30.02 · $650
This Omega De Ville Prestige is a classic men's watch made from stainless steel, featuring a quartz movement and an Omega calf leather band.

  • Condition: Pre-owned with little wear and marks
  • Case Width: 34.5 mm (without crown)
  • Band Type: Calf leather with marked buckle
  • Case Material: Stainless steel
Posted at
Apr 13, 2026, 11:43 PM
Active
[WTS] Omega Seamaster De Ville Tiffany & Co. 14K Solid Gold Automatic Day-Date 34mm

Omega Seamaster De Ville Tiffany & Co. 14K Solid Gold Automatic Day-Date 34mm

Omega - C6865 · $3,800
This Omega Seamaster De Ville Tiffany & Co. is a unique retail collaboration produced in 1973-74, featuring double-signed dials and an automatic movement with quick-set day and date.

  • Condition: Good vintage condition
  • Case Material: 14K solid yellow gold
  • Diameter: 34mm
  • Movement Type: Automatic
Posted at
Apr 8, 2026, 9:30 PM
Active