Produced 2026–present. Rotondo UltraFino Carbon Skeleton Sky Blue, reference RDUFFTSKCBSB, is a 2026 Bianchet flying-tourbillon watch with a 39.5 mm high-density carbon with sky-blue vulcanized-rubber seam case, openworked skeleton UR01…
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Specifications, configurations, image gallery, market listings, lineage and notable appearances are part of the full reference.