Breitling Transocean Chronograph Unitime

The story

The Breitling Transocean Chronograph Unitime ref. AB0510U0/A732/152A brings sophisticated mechanical complexity to a men’s world-time chronograph. At its heart is the in-house automatic Caliber B05: a COSC-certified chronometer with 56 jewels and a 70-hour power reserve. Its intuitive, patented double-disc system pairs a city disc with a 24-hour ring, showing all 24 major time zones at a glance. When crossing time zones, turning the crown forwards or backwards corrects the hour hand and both discs simultaneously, while the date adjusts automatically. That coordinated adjustment gives its complexity a practical purpose. This 2015 example pairs a 46 mm steel case with a polar white dial and index hour markers, beneath a sapphire crystal. The Ocean Classic steel mesh bracelet lends a fine, tactile texture to the substantial case. Presented in Very Good condition, it offers a distinctly technical presence on the wrist, with the world-time display inviting a closer look rather than demanding attention. Accompanied by its box and papers, this Full Set suits a collector drawn to manufacture complications or a wearer who will use its travel functions. Imagine setting local time on arrival: a small, deliberate ritual with a companion that can carry the memory of each journey. Available to view by appointment.