Breitling B21

AutomaticIn ProductionIn-house
Family: xx47 jewels70h power reserve28,800 vph (4 Hz)

The Breitling B21 is an automatic movement with 47 jewels and a frequency of 28,800 vibrations per hour. It has a power reserve of 70 hours and combines a chronograph with column wheel construction and a tourbillon, along with a small seconds display. This caliber is used in the Premier B21 Chronograph Tourbillon 42 and the Top Time (B21).