The Details That Matter
- The Bulgari Octo Finissimo 37 is a 37mm ultra-thin automatic watch powered by the entirely new in-house Calibre BVF 100, developed over three years at Bvlgari’s Swiss manufacture to deliver a 72-hour power reserve in a 2.35mm-thick movement — opening the collection to a genuinely wider range of wrists without conceding any of its technical substance.
- The BVF 100 is not a reduced version of the existing BVL 138; it is an original calibre, 31mm in diameter, engineered from the ground up.
- Four distinct versions launch simultaneously: sandblasted titanium, satin-brushed and polished titanium, 18-karat yellow gold, and a sandblasted titanium Minute Repeater.
- Starting price from USD 16,600 / EUR 17,700; unveiled at Watches & Wonders Geneva 2026.
Why a New Movement Was the Only Option
The Calibre BVL 138 that powers the 40mm Octo Finissimo measures 36.6mm in diameter. Placing it inside a 37mm case was not a question of engineering ambition — it was physically impossible. Any 37mm Octo Finissimo required an original movement, designed from scratch.
Bvlgari’s answer was three years of development resulting in the BVF 100: a self-winding micro-rotor calibre measuring 31mm across and 2.35mm thick. That 20% reduction in diameter comes with no penalty on power reserve. The BVL 138 offers 60 hours; the BVF 100 delivers 72 — achieved through a high-energy-storing barrel engineered into a more compact format. For the owner, it means the watch can be removed on a Friday evening and picked up on Monday morning still running.
Design & Mechanics: What the BVF 100 Looks Like Up Close
The movement visible through the sapphire caseback is finished with radiating Côtes de Genève decoration that emanates outward from the balance wheel. The result is a shimmering sunburst pattern that shifts with every change of angle.
Newly profiled octagonal screws replace standard fasteners throughout. They echo the Octo’s defining geometric architecture at the level of components most owners will never consciously notice — which is precisely the point. As Bvlgari framed it: “A newly developed in-house movement, shaped through meticulous assembly, becomes a refined expression of the Art of Time.”
On the Wrist: Proportions and the Four Versions
At 6.45mm thick, the 37mm case sits firmly in ultra-thin territory — still substantially slimmer than most luxury sport watches at any diameter. The 110-facet octagonal architecture, inspired by the geometry of Rome’s classical buildings, is preserved without compromise.
The integrated bracelet, in titanium or 18-karat yellow gold, flows from the case with the same continuous line that has defined the collection since 2014. Where the 40mm version wears large on slimmer wrists and has historically addressed a predominantly male clientele, the 37mm sits naturally across a wider range of wrist sizes — opening the Serpenti Viper Artsmanship-level breadth of Bvlgari’s audience to the Octo Finissimo for the first time. The sandblasted titanium Minute Repeater, powered by the manual-winding Calibre BVL 362 and measuring 6.85mm, ties its world-record status to a 37mm case — matching the distinction already held by its 40mm sibling.
Heritage & Lineage: A Decade of Records, and Where the 37 Fits
Since 2014, the Octo Finissimo has held simultaneous world records across ultra-thin tourbillon, minute repeater, automatic, tourbillon automatic, chronograph GMT, and perpetual calendar categories. Jean-Christophe Babin, Bvlgari’s CEO, has described this body of work as “an avant-garde watchmaking that marries Swiss micro-mechanical mastery with unrivaled Italian creativity.”
The BVF 100 is not Bvlgari’s thinnest movement. It may, however, prove to be its most consequential — shifting the collection’s question from how thin can we go? to how many people can wear what we’ve built? For GCC collectors who have admired the Octo Finissimo from a distance, the B.zero1 Artsmanship lineage of architectural boldness now arrives in a format that fits.
Specifications
| Case diameter | 37 mm |
| Case thickness | 6.45 mm (solo tempo) / 6.85 mm (Minute Repeater) |
| Case material | Sandblasted titanium; satin-brushed and polished titanium; 18-karat yellow gold |
| Movement | Calibre BVF 100 — in-house automatic, micro-rotor; 31 mm diameter; 2.35 mm thick |
| Power reserve | 72 hours (3 days) |
| Frequency | 3 Hz (21,600 vph) |
| Crystal | Sapphire (front and caseback) |
| Starting price | From USD 16,600 / EUR 17,700 |
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| Movement | Calibre BVF 100 — new in-house automatic with micro-rotor; 31mm diameter; 2.35mm thick; 72-hour power reserve; 3 Hz (21,600 vph) |
| Case size | 37mm diameter; 6.45mm thick (solo tempo) / 6.85mm thick (Minute Repeater) |
| Case material | Sandblasted titanium; satin-brushed and polished titanium; 18-karat yellow gold |
| Price | From USD 16,600 / EUR 17,700 |
Frequently Asked Questions
What movement does the Bulgari Octo Finissimo 37 use?
The Octo Finissimo 37 is powered by the Calibre BVF 100, an entirely new in-house self-winding movement with a micro-rotor. It measures 31mm in diameter and 2.35mm in thickness, with a 72-hour power reserve at 3 Hz (21,600 vph), developed over three years at Bvlgari's Swiss manufacture.
How thick is the Bulgari Octo Finissimo 37 case?
The standard solo tempo models measure 6.45mm in case thickness. The Sandblasted Titanium Minute Repeater variant, powered by the manual-winding Calibre BVL 362, measures 6.85mm — still recognised as the world's thinnest minute repeater watch alongside its 40mm sibling.
What is the starting price of the Bulgari Octo Finissimo 37?
The Octo Finissimo 37 starts at approximately USD 16,600 / EUR 17,700 for the sandblasted titanium model, as announced at Watches & Wonders Geneva 2026.
Is the Bulgari Octo Finissimo 37 a smaller version of the 40mm model?
It is not a downsized derivative. The 40mm Octo Finissimo uses the Calibre BVL 138, which at 36.6mm in diameter physically cannot fit a 37mm case. Bvlgari spent three years engineering the entirely new BVF 100 calibre from the ground up specifically for this reference.
How many versions of the Octo Finissimo 37 are available?
Four versions were announced: sandblasted titanium, satin-brushed and polished titanium, 18-karat yellow gold, and a sandblasted titanium Minute Repeater. The three automatic versions are powered by the BVF 100; the Minute Repeater uses the manual-winding Calibre BVL 362.
