Breitling Transocean Transocean Chronograph Unitime Stainless Steel / Black / Calf

Reference AB0510U4.BE84.439X

About this watch

The Breitling Transocean Chronograph Unitime AB0510U4.BE84.439X is a masterpiece of horological engineering, boasting an in-house automatic movement with chronograph and world timer functions. Its robust 46 mm stainless steel case and sapphire crystal ensure durability and water resistance up to 100 meters. The watch features a sleek black dial with stick indexes and hands, perfect for readability at a glance. With its luxurious calfskin leather strap and polished finish, this timepiece exudes sophistication and elegance. Whether you're a seasoned traveler or an adventurer at heart, the Transocean Chronograph Unitime is the perfect companion for your journey. Its impressive features, including a column-wheel chronograph and date function, make it a valuable investment for watch enthusiasts and everyday users alike.
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Key Features

  • 46 mm stainless steel case
  • In-house Breitling Caliber B05 movement
  • Chronograph and world timer functions
  • Sapphire crystal with water resistance up to 100 meters
  • Luxurious calfskin leather strap
  • Polished finish for added sophistication
  • Column-wheel chronograph for precise timekeeping

Specifications

Brand
Breitling
Family
Transocean
Model
Transocean Chronograph Unitime Stainless Steel / Black / Calf
Reference
AB0510U4.BE84.439X
Movement
caliber-b05
Movement Features
  • Hours, Minutes, Small Seconds, World Time
  • Date
  • Chronograph, Column wheel
  • Chronometer
Case
Stainless Steel 46mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Breitling Transocean Chrono-Matic 2119 Caliber 12 - Vintage - Serviced

Breitling Transocean Chrono-Matic 2119 Caliber 12 - Vintage - Serviced

Breitling - 2119 · $3,100
This circa 1971 Breitling Transocean Chrono-Matic chronograph automatic watch features the Breitling caliber 12 and a 42 mm case. The original steel bracelet has a folding clasp.

  • Condition: Good
  • Age: circa 1971
  • Bracelet Type: steel bracelet with folding clasp
  • Caliber: Breitling caliber 12
Posted at
Apr 28, 2026, 10:14 AM
Active
[WTS] Vintage 35mm Breitling TransOcean Crosshair Dial (Serviced)

Vintage 35mm Breitling TransOcean Crosshair Dial (Serviced)

A vintage Breitling TransOcean with a Crosshair dial from the 1950s or 1960s, featuring Cal. B126 movement.

  • Condition: Serviced, keeps good time
  • Movement: Cal. B126
  • Era: 1950's/1960's
Posted at
Apr 25, 2026, 12:53 PM
Active
[WTS] Breitling Transocean Day Date A45310

Breitling Transocean Day Date A45310

Breitling - A45310 · $2,299
This Breitling Transocean Day Date features a 43mm case and is available for sale.

  • Case Size: 43mm
  • Strap: AM strap
  • Buckle: Original buckle
Posted at
Apr 23, 2026, 6:14 PM
Active
[WTS][US] Breitling Transocean Chronograph - Sliver Dial - 38mm - A41310

[US] Breitling Transocean Chronograph - Sliver Dial - 38mm - A41310

Breitling - A41310 · $2,775
This is a Breitling Transocean Chronograph with a silver dial, 38mm case size. It's in great condition and functions perfectly.

  • Condition: great
  • Case Size: 38mm
  • Links: 4 removable links
Posted at
Apr 22, 2026, 8:09 AM
Active
[WTS] Breitling Transocean Day Date A45310

Breitling Transocean Day Date A45310

Breitling - A45310 · $2,299
This listing is for a Breitling Transocean Day Date in the A45310 reference. The watch features a 43mm case size.

  • Condition: Watch only
  • Case Size: 43mm
Posted at
Apr 16, 2026, 10:09 AM
Active
[WTS][US] Breitling Transocean Chronograph - Sliver Dial - 38mm - A41310

[US] Breitling Transocean Chronograph - Sliver Dial - 38mm - A41310

Breitling - A41310 · $2,800
This Breitling Transocean Chronograph features a silver dial and is sized at 38mm. It's a mechanical watch with no issues.

  • Condition: Great
  • Case Size: 38mm
Posted at
Apr 15, 2026, 8:06 AM
Active
Breitling Transocean Day & Date Steel White Dial Automatic A45310

Breitling Transocean Day & Date Steel White Dial Automatic A45310

Breitling - A45310 · $3,250
The Breitling Transocean Day & Date is a mechanical automatic watch with a stainless steel case and a white dial. It features a day-date function and is sized for men at 43mm in diameter.

  • Condition: 95%
  • Size: 43mm diameter
  • Case material: stainless steel
Posted at
Mar 9, 2025, 9:05 AM
Active