Included in the Price:
- Original box and papers
- FedEx Overnight Shipping (Next-Day Delivery)
Product Details:
- Watch is 100% identical to the original — same weight, materials, and movement
- 2-Year Warranty
Guarantee:
- 100% Money-Back Guarantee. No questions asked.
- If the product is incorrect, defective, or you are unsatisfied for any reason, a full refund will be issued.
Availability:
- Local stock with 3 warehouses in Europe, 9 in the United States, and 1 in Australia
Bianchet redefines modern Haute Horlogerie with the B 1.618 UltraFino, a timepiece where precision engineering meets mathematical poetry. Crafted around the Golden Ratio (1.618), this ultra-thin timepiece houses Bianchet’s first automatic flying tourbillon movement, the UT01 caliber, entirely made from titanium. At just 8.9mm thick, its curved tonneau-shaped case follows a 1.2mm lug-to-lug curvature, delivering an effortlessly ergonomic fit that balances elegance with resilience.
Strength and refinement converge as the UltraFino defies convention, with an impressive 5,000Gs shock resistance and 5 ATM water resistance, ensuring durability without compromise. Available in two expressions, one showcases a skeletonized movement with exquisite hand-finishing, while the other features the Golden Diamond dial, a modernized Clou de Paris motif. Both variants incorporate Bianchet’s signature rubber seam between the bezel and case middle.
At the heart of the watch, the UT01 movement is an ultra-thin feat of engineering at 3.85mm thick and 8 grams light, featuring one of the rarest horological constructions—an automatic flying tourbillon in titanium with a Fibonacci-inspired gold rotor. Every component adheres to 1.618 proportions, reinforcing Bianchet’s commitment to aesthetic perfection. Additionally, the fully integrated titanium bracelet, a rare feat for a tonneau-shaped case, enhances the watch’s seamless fluidity, while a vulcanized rubber strap with a titanium deployant buckle provides an alternative refined look.
The B 1.618 UltraFino stands as a testament to the Golden Ratio’s enduring influence, fusing ultra-thin tourbillon mastery, contemporary sportswear ergonomics, and architectural beauty. Whether skeletonized or featuring the Golden Diamond dial, it remains a bold statement of proportion, performance, and timeless elegance.

Flying Tourbillon Grande Date B1.618 Hybrid Blue
Rolex Day-Date 40 40 mm white gold 228239-0049
Datograph Handwerkskunst
Carbon Orange Tourbillon B1.618 Openwork
Omega SEAMASTER DIVER 300M 42 mm, steel on steel 210.30.42.20.01.018
Carbon Red Tourbillon B1.618 Openwork
Rolex Day-Date 36 36 mm white gold 128239-0071
Flying Tourbillon Grande Date B1.618 Carbon White
Flying Tourbillon Grande Date B1.618 Hybrid Green
Omega SPEEDMASTER 38 38 mm, steel on steel 522.30.38.50.04.001
Portugieser Tourbillon Rétrograde Chronograph
BIANCHET x MASERATI MSG Racing Flying Tourbillon Grande Date B 1.618
Saxonia Thin 40
Flying Tourbillon Sport GMT Carbon Red
Rolex Day-Date 36 36 mm white gold 128239-0065
Omega SEAMASTER DIVER 300M 42 mm, Sedna™ gold on rubber strap 210.52.42.20.04.001
Square Bang Unico Titanium Blue Ceramic 












