Bulgari Octo Grande Sonnerie Perpetual Calendar Watches

A Complete Guidebook On Bulgari Octo Grande Sonnerie Perpetual Calendar Watch

The Bulgari Octo Grande Sonnerie Perpetual Calendar is among the most complicated watches Bulgari has made to date, featuring too many high complications to even fit in its name. Combining both grande and petite sonneries, a minute repeater, tourbillon, perpetual calendar, moon phases, and more, it is a one-off piece that represents the most challenging and prestigious watchmaking techniques.