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
Zeitwerk Minute Repeater Honeygold
Grand Sport Tourbillon Blue
Galet Classic Tourbillon Double Balance Spring
1815 Tourbillon
Omega SPEEDMASTER DARK SIDE OF THE MOON 44.25 mm, black ceramic on rubber strap 310.92.44.51.01.005
Tourbillon B1.618 Openwork Titanium Carbon
Galet Classic Tourbillon Double Balance Spring
Galet Classic Tourbillon Double Balance Spring
Grand Sport Tourbillon
Grand Sport Tourbillon Pursuit
Flying Tourbillon Sport GMT Hybrid Gold
Rolex Sky-Dweller 42 mm white gold 336239-0002
Pilot's Watch Chronograph
Big Bang Tourbillon SR_A by Samuel Ross 












