Octo Finissimo Ultra Tourbillon Platinum

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          Description

          Technical specifications – Bulgari Octo Finissimo Ultra Tourbillon Platinum

          Case: 40mm diameter x 1.85mm thickness – platinum case integrated with movement mainplate – satin-brushed and polished finishes – sapphire crystals front and back – lateral knobs for winding and time-setting
          Dial: off-centre hour and minutes display – blue PVD coating on mainplate – exposed gear train and tourbillon – sandblasted steel ratchet wheel with circular satin and geometric engraving
          Movement: calibre BVF 900 – hand-wound – ultra-thin integrated architecture – flying tourbillon – 28,800vph – 42-hour power reserve – ball-bearing construction, peripheral tourbillon guidance
          Bracelet: integrated platinum bracelet – concealed folding clasp

          Reference: 104344


          The shift to platinum, however, changes the character of the watch. Measuring 40mm in diameter and still only 1.85mm thick, the case and integrated bracelet with satin-brushed and polished surfaces are now crafted entirely from this dense, noble metal. Compared to titanium, platinum brings weight but also manufacturing complexity. 

          On the dial side, the Octo Finissimo Ultra Tourbillon Platinum reveals subtle updates. Blue PVD accents appear on the skeletonised time display and mainplate, bringing contrast to the technical layout. The exposed ratchet wheel, in sandblasted steel with circular satin finish and geometric engraving, reinforces the mechanical aesthetic. As before, the display is reduced to essentials, with hours and minutes positioned off-centre and the flying tourbillon integrated directly into the main structure, at 5 o’clock.

          Powering the Octo Finissimo Ultra Tourbillon is the hand-wound calibre BVF 900, developed with Concepto. Operating at 28,800vph with a 42-hour power reserve, the movement relies on ball bearings and ultra-thin construction principles to minimise friction and height. The tourbillon is guided peripherally and integrated within the movement plane, a key factor in achieving such extreme thinness.