Bulgari BVL 191

Bulgari's entry-level in-house automatic movement, marketed as 'Solotempo'. Features central seconds, instant date change, hacking seconds, and ceramic ball bearings for the bidirectional winding rotor. Named for its 191 components. The movement was optimized in 2017, adding one jewel (from 26 to 27). Used primarily in the Octo Roma watch line.