Bulgari Serpenti Tubogas SP35 SPG - Single Coil - 18k Yellow Gold & Stainless Steel - Diamond-Set Bezel

Few watch or jewelry designs manage to combine aesthetic identity and artisanal technique as clearly as the Bulgari Serpenti Tubogas. The Serpenti collection first appeared in 1948, when Bulgari reinterpreted the ancient motif of the serpent — a symbol traditionally associated with wisdom, renewal and vitality — into a wristwatch whose body wraps around the wrist in a spiral, combining watchmaking and jewelry craftsmanship. At the core of this design is the “Tubogas” technique — a method borrowed from industrial gas-pipe construction. In Bulgari’s version, two long strips of metal (typically gold or steel) with raised edges are tightly wound around a rigid core (wood or copper) so that the edges interlock. Once the winding is complete, the core is removed (or dissolved), leaving a continuous, seamless, extremely flexible tubular bracelet — without any soldering. The Tubogas bracelet allows remarkable flexibility and comfort — a rare quality in fine jewelry watches — while maintaining the sculptural, serpent-like coil that hugs the wrist. Over the decades, the Serpenti Tubogas design has evolved. From the early gold bracelet-watches of the 1940s with a simpler case, the collection matured through the 1950s and 1960s into more articulated serpent-inspired forms: the watch case began to take the shape of a stylized snake head — often set with precious stones — and the bracelet coil became more refined, sometimes decorated with gemstones or enamel, demonstrating Bulgari’s jewelry savoir-faire. The present example stands firmly within this prestigious heritage. Offered in the single-coil configuration, it is crafted in 18k yellow gold and stainless steel, boasting an anthracite sunburst dial elegantly framed by a diamond-set bezel that enhances its jewelry-like and luxurious character. Furthermore, this example has been preserved in excellent condition and is accompanied by its full set.