Breitling Transocean Chronograph Unitime

Offered for sale is a Breitling Transocean Chronograph Unitime, reference AB0510U4/BB62 — a sophisticated world-time chronograph that blends classic Transocean elegance with one of Breitling’s most technically impressive in-house movements.


Housed in a 46mm stainless steel case, the watch features a striking black dial with silver sub-dials and a 24-city world-time ring, allowing instant reading of time across all major time zones. The design is clean, balanced, and highly legible, with applied indices, dauphine hands, and subtle red accents adding visual depth without overwhelming the dial.


At its heart is the Breitling Manufacture Caliber B05, a COSC-certified automatic chronograph movement with world-time functionality. All time zones are adjusted simultaneously via the crown, making this an exceptionally practical travel watch. It offers a 70-hour power reserve and features a column wheel and vertical clutch for precise chronograph operation. The movement can be admired through the sapphire caseback.


This example is fitted with the Breitling black leather strap and steel folding clasp, completing the refined yet versatile aesthetic. Additionally, it comes with a Breitling steel mesh bracelet. With 100 meters of water resistance, it is robust enough for daily wear while remaining unmistakably elegant.


The Transocean Chronograph Unitime is a perfect choice for collectors or frequent travelers seeking a mechanically advanced, in-house Breitling that stands apart from the brand’s more common aviation-styled offerings.


Brand: Breitling
Model: Transocean Chronograph Unitime
Reference: AB0510U4/BB62
Case Material: Steel
Bracelet Type: N/A
Bracelet Material: Steel
Size: 46mm
Dial Color: Black
Bezel Material: Steel
Bezel Type: N/A
Date: N/A
Condition: Pre-owned
Included Items: Watch with original papers
Movement: Automatic
Crystal: Sapphire crystal
Water Resistance: Up to 100m