4 Exceptional Timepieces for Those Who Cherish the Art of Mechanical Complexity

Bvlgari Octo Finissimo Ultra Tourbillon

Bvlgari’s latest creation for 2025—undoubtedly, the mere presence of the word ‘Tourbillon’ in the model name is enough to capture the attention of watch enthusiasts to a certain extent. Yet, it is only to a certain extent. However, when the word ‘Ultra’ is added to the mix that truly elevates this timepiece into a realm of awe—instantly captivating every gaze. This is, after all, the world’s thinnest tourbillon watch, housed in a 40mm aluminum case with an astonishing thickness of just 1.84 mm.

To achieve this feat, the Flying Tourbillon movement—Manual-winding BVF 900—had to be even slimmer measuring approximately 1.7 mm. Bvlgari ingeniously reimagined the architecture of the movement, opting for a horizontal layout rather than a vertical one. This approach allows each component to be meticulously aligned and interconnected, enabling seamless operation at an impressive frequency of 4Hz (28,800 vibrations per hour)—a rarity in tourbillon calibers. The power reserve stands at a respectable 42 hours.

The skeletonized dial is a celebration of craftsmanship, revealing the intricate mechanics beneath while showcasing refined finishing techniques that play with light and shadow to create a mesmerizing visual depth. Every glance at the wrist becomes a moment of admiration.

Limited to just 20 pieces worldwide, this extraordinary timepiece is a testament to the complexity of its engineering and the profound value it embodies.

Franck Muller Long Island Evolution Master Jumper

While the iconic image most people associate with Franck Muller’s case design is the signature Tonneau shape, the Long Island Evolution collection stands in striking contrast, featuring a vertically oriented rectangular case.

This collection comprises three models sharing the same design philosophy: black PVD-coated titanium cases paired with green anodized aluminum bezels. The distinction lies in the movement and dimensions of each piece. For instance, the Master Jumper model measures 35.3 x 48.1 mm.

A standout feature of this timepiece is its hand-wound MVT F3100L movement, which displays time through rotating discs for hours and minutes, with a date aperture positioned at the bottom. It is a rare sight to witness a mechanical watch that abandons traditional hands and hour markers in favor of numeric plates—a bold departure that demands significant horological expertise. Franck Muller’s watchmakers had to reengineer the movement to separate the gear trains responsible for the hour and minute hands.

In terms of aesthetics, Franck Muller has meticulously decorated the movement components, including bridges adorned with Côtes de Genève and a base plate finished with Perlage, enhancing the visual appeal when viewed through the transparent case back.

Though not overly complex in terms of functionality, the transformation of a mechanical watch from traditional hand-based time display to a digital-like numeric format is a remarkable achievement, requiring a high level of craftsmanship and innovation.