The Breitling caliber B35automatic caliber is an in-house Certified Chronometer (COSC) movement. It is Breitling’s first non-chrono in-house movement. This caliber was introduced in 2015.
Although Breitling calls caliber B35 an in-house movement, it is based on ETA 2892 and manufactured by Breitling. The world time complication is a patented module that Breitling created and adds to the base caliber.
World Time Module
The global/world time functionality allows for independent setting of the hour hand for local time, but there is also an inner bezel that rotates in unison with the hour hand.