Bulgari Unveils BVS 100 Lady Solotempo Automatic Movement, First Housed In Serpenti

At the LVMH Watch Week 2025 here in New York City, Bulgari delights customers with a mechanical transformation of its beloved Serpenti – thanks to an all-new automatic movement.  The new  Lady Solotempo BVS100 automatic movement is a natural progression for this jewelry and watch brand that loves to unite its two facets under one roof. Initially, the Lady Solotempo movement is making its appearance in the Serpenti, in both Seduttori and Tubogas renditions.

The development of the Lady Solotempo movement was no small undertaking. Crafted entirely in-house at Bulgari’s Swiss manufacture in Le Sentier, the movement represents the culmination of years of research and innovation. Measuring a mere 19mm in diameter and just 3.9mm in thickness, this petite yet powerful caliber required a meticulous approach to meet the strict dimensional criteria of the Serpenti’s distinct design. Weighing just five grams, the movement still delivers a robust 50-hour power reserve, a testament to Bulgari’s expertise.

For Bulgari, equipping the Serpenti with a self-winding mechanical movement was a natural evolution. The serpent motif, a timeless symbol of renewal and eternity, mirrors the perpetual motion of the Lady Solotempo movement, powered by the energy of its wearer. The oscillating weight, adorned with a pattern of seven serpent-inspired scales, is visible through the sapphire crystal case back, further emphasizing the integration of symbolism and mechanical precision.

The decision to bring this innovation to the Serpenti marks a pivotal moment for Bulgari. Since its inception in 1948, the Serpenti has embodied the brand’s unique fusion of Greco-Roman artistry and contemporary design. Initially equipped with some of the finest mechanical movements of its era, the Serpenti has evolved over the decades, adapting to new technologies while retaining its identity as a symbol of feminine allure.

The 2025 collection includes a dazzling array of Serpenti Seduttori and Tubogas watches, each housing the Lady Solotempo caliber. The timepieces are crafted in various metals—yellow gold, rose gold, white gold, and two-tone with stainless steel—and are offered with a range of finishes. Some boast bezels set with brilliant-cut diamonds, while others feature pavé dials for added opulence. The bracelets, whether supple gold or the signature Tubogas coil, seamlessly integrate with the flowing curves of the case, enhancing the collection’s sensual aesthetic.

Fabrizio Buonamassa Stigliani, Bulgari’s Executive Director of Watch Design, describes the Serpenti as more than an icon—it is a signature of the brand’s identity. The integration of the Lady Solotempo movement solidifies the Serpenti’s status not only as a piece of fine jewelry but also as a fully realized mechanical timepiece. This duality, merging art with technical mastery, positions the Serpenti at the pinnacle of modern watchmaking.

A big step for the brand, this isn’t the only advancement we will be seeing in the Serpenti collection during this Chinese New Year of the Snake.