Editorial
The Octo Finissimo Automatic holds the world record for thinnest automatic watch: 5.15mm total case height, with the BVL 138 movement measuring just 2.23mm. Bvlgari built this in titanium at 40mm, which means it wears like a chip of cool metal on the wrist. No compromise on wearability was made to claim that record.
Bvlgari launched the Octo line in 2012, then began systematically setting world records with ultra-thin variants across manual wind, tourbillon, minute repeater, and perpetual calendar complications. The automatic version arrived in 2017 and set its own record at the time, proving the feat was not limited to manually wound movements. The BVL 138 rotor is integrated into the movement architecture rather than stacked on top, which is how Bvlgari achieved the total thickness.
Titanium was the only case material compatible with the weight targets the engineers set. The Finissimo family has since become the most credible ultra-thin program from any manufacture, with record after record verified by official bodies.
The case is titanium, which scratches readily and cannot be polished back to factory condition the way steel can. The 5.15mm total height means the crystal sits very close to the movement, and a sharp impact on the crystal can transfer directly to the fragile rotor or bridges. Service access requires a manufacture-trained technician familiar with the BVL 138; not every watchmaker will touch it, and those who do often decline.
The bracelet integration is tight, and link replacement or resizing outside an authorized center risks misalignment of the thin titanium components. Because the record-holder status attracts attention, fakes and franken pieces exist, so provenance documentation matters more than usual for pre-owned purchases.
