Breguet 554.3

Breguet caliber 554.3 is a manual-winding tourbillon introduced in 2012. It features a chain and fusée constant-force mechanism, a signature of the Tradition line, which helps maintain consistent force delivery to the escapement as the mainspring unwinds. The caliber is manufactured in-house by Breguet and remains in production. It serves as the movement for the Tradition 7047, a contemporary interpretation of Breguet's historical designs from the early 19th century.