Ultrafino Rotondo Sky Blue

• Case: Grade 5 Titanium
• Size: 39.5 mm x 8.9 mm
• Movement: Caliber Bianchet UR01 - In-house, ultra-thin automatic flying tourbillon
• Function: Flying tourbillon
• Power Reserve: approximately 60 hrs.
• Water Resistance: 10 atm
• Dial: Openworked skeleton
• Caseback: sapphire crystal
• Strap/Bracelet: Integrated bracelet + additional rubber strap with titanium folding clasp
• Factory Warranty: 5 years

Bianchet introduces the UltraFino Rotondo: a round-case expression of the Maison’s “form above all” philosophy, built around harmonic proportions inspired by the Golden Ratio and an openworked flying tourbillon that places architecture, light, and depth at the center of the design. 

Clean, uninterrupted bezel to keep focus on the openworked tourbillon and fully skeletonized movement. Signature rubber seam under the bezel, highlighted with refined color accents echoed on strap details and (carbon edition) hands. Golden Ratio (1.618) guides case proportions and movement architecture (bridges and rotor) for an intuitive visual balance.

• Ultra-slim yet capable: 8.9 mm wrist profile with 10 ATM / 100 m water resistance.
• Shock resistance: engineered to withstand up to 5,000 G.
• Lightweight wear: 48 g (high-density carbon) or 75 g (grade 5 titanium), including integrated bracelets; each includes an additional colorful rubber strap.
• Material choices: grade 5 titanium for technical refinement; high-density carbon for a contemporary, high-performance aesthetic and added visual depth.

Calibre UR01 -In-house, ultra-thin automatic flying tourbillon: 3.85 mm movement thickness; < 8 g movement weight. Hand finishing: assembled and finished in La Chaux-de-Fonds, including 30+ hours devoted to hand bevelling of titanium bridges.