
On January 21, 2025, during LVMH Watch Week, Bulgari introduced its latest technical marvel– the BVS100 Lady Solotempo automatic movement, now the smallest self-winding caliber ever created by the brand. With a diameter of just 19mm, a thickness of 3.90 mm, and weighing only 5 grams, this miniature masterpiece offers 50 hours of power reserve. To put it into perspective, it’s roughly the size of two stacked US nickels– a feat of micro-mechanical engineering.
A Powerful Heart for the Bulgari Serpenti Watch Collection
The Lady Solotempo movement now powers the Serpenti Seduttori and Serpenti Tubogas watches, giving these iconic timepieces a mechanical soul with exceptional precision and reliability.
Previously, many of Bulgari’s women’s watches relied on quartz movements, but this new micro-mechanical caliber marks a significant shift– bringing Swiss mechanical mastery into their elegant ladies’ collections.
Swiss-Made Innovation and Expertise
The BVS100 Lady Solotempo movement is entirely designed, developed, and manufactured in-house at Bulgari’s Le Sentier Manufacture in Switzerland. This achievement follows Bulgari’s previous breakthroughs in the field of micro-mechanical movements, y compris:




The BVL150 tourbillon movement in 2020 (18mm x 22mm, 3.65 mm thick).
The Piccolissimo movement in 2022-- smaller than a fingernail (12.30 mm in diameter, 2.50 mm thick).
The Lady Solotempo caliber represents the next chapter in Bulgari's watchmaking journey, blending cutting-edge innovation with refined aesthetics.
LVMH’s Strategic Integration
Bulgari’s new caliber won’t remain exclusive to the maison. According to Bulgari’s CEO, the BVS100 movement will soon be integrated into the LVMH Group’s in-house movement catalog, produced by Zenith’s manufacture for use in watches by other LVMH brands. This strategic collaboration further strengthens the group’s dominance in the haute horology space.
Serpenti: A Symbolic Collection for the Year of the Snake
At this year’s LVMH Watch Week, Bulgari focused exclusively on new Serpenti releases– a fitting tribute to the upcoming Year of the Snake in the Chinese lunar calendar.
The Serpenti collection, named after the Italian word for “snake,” draws inspiration from the serpent’s sleek, sinuous form, symbolizing transformation, élégance, and power. With the new Lady Solotempo automatic movement, the Serpenti line achieves a new level of sophistication, combining Italian artistry with Swiss precision.
Bulgari’s Ambition in Haute Horology
Bulgari has already made a name for itself in the ultra-thin watch sector, thanks to its record-breaking Octo Finissimo collection. With the introduction of the BVS100 Lady Solotempo, the brand continues to push the boundaries of miniature mechanical movements, gradually replacing quartz calibers in its women’s collections with intricate, high-end Swiss mechanisms.
From the BVL150 tourbillon in 2020 to the tiny Piccolissimo in 2022, and now the Lady Solotempo in 2025, Bulgari is proving its ambition and expertise in the world of haute horology.
Top 3 Most Popular Bulgari Serpenti Watches
To complement the launch of the Lady Solotempo movement, here are three of the most beloved and sought-after Bulgari Serpenti timepieces:

Serpenti Tubogas Watch
18K gold Bulgari serpenti tubogas watch, Iconic for its coiled bracelet design, inspired by ancient Roman tubogas techniques.
Features 18k rose gold or steel case with a diamond bezel.
A timeless symbol of elegance and sophistication.
Serpenti Seduttori Watch



Inspired Bulgari serpenti seduttori watch known for its sleek, hexagonal snakehead case and flexible bracelet.
Adorned with pavé diamonds and available in white, rose, or yellow gold.
A perfect blend of femininity and power.

Serpenti Spiga Watch
This replica Bulgari Serpenti spiga watch recognized for its bold, sculptural design with a flexible, overlapping bracelet.
Crafted in ceramic and gold for a modern twist.
Combines edgy style with classic Bulgari elegance.
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