Bulgari Octo Roma Grande Sonnerie Perpetual Calendar was created in honor of the 25th anniversary of the first Grande Sonnerie by Gerald Genta, released in 1994. This is an impeccable novelty in the Bulgari Grande Sonnerie collection. The movement in such watches has precise adjustment and protection against damage during winding of the watch with the repeater running.

The BVL 980 automatic Calibre, consisting of 1,180 components, is installed inside this exceptionally sophisticated watch. It combines large and small combat, minute repeater, tourbillon, perpetual calendar, moon phase, power reserve indicators for the mechanism and repeater.

The 44mm case is made of CTP carbon fiber and has a carbon midsection that provides the best repeater sound. The pointers, arrows, moon phase, crown and buttons are made of rose gold. The dial is covered with tinted smoky sapphire crystal. The black alligator leather strap is equipped with a titanium folding clasp with DLC coating.

Technical Specifications Octo Roma Grande Sonnerie Perpetual Calendar
| Reference | 103195 |
| The building | 44 mm, carbon fiber |
| The mechanism | Automatic, skeleton; functions: hours, minutes, moon phase, perpetual calendar, power reserve, repeater, tourbillon |
| The strap | alligator leather with titanium insert |