Unveiled at Barton7 during Geneva Watch Week this year, the new limited editions of the Bianchet Tourbillon B1.618 Openwork watch unite noble materials with a sporty and technological spirit.

Established by the Franco-Italian couple Rodolfo and Emmanuelle Festa Bianchet, the Swiss haute horlogerie brand creates modern and refined watches by using the iconic Golden Number 1.618 and the work of Italian mathematician Fibonacci as design basis. Introduced 2020, the Tourbillon B1.618 Openwork is the flagship collection of Bianchet.

The tonneau shape of the case, the openwork design of its movement, and the high end finishing of the Tourbillon B1.618 Openwork watch illustrate the combination of Italian aesthetic sensibility and French sense of detail.

The brand has recently enhanced this series by launching two limited editions featuring carbon & titanium case. They come with blue or green details.

Conceived for an active lifestyle, the slightly curved carbon & titanium case offers perfect comfort. The union of hand-finished Grade 5 Titanium on the bezel and back, and a light carbon fiber composite with added titanium powder, which Moiré effect creates unique patterns on every timepiece, is underlined by soft vulcanised rubber seams which bring a sensuous feel. The perfect curves, the lightness and softness sensations, the high-end materials, create a unique horological experience.

The movement of the Tourbillon B1.618 Openwork is the result of genuine aesthetic research. Conceived from the outset as a skeletonized movement, the Calibre B1.618 is all about a sensation of plumbing untold depths, a feeling accentuated by the curves, whose radii’s progression and interlacing are derived from the Fibonacci sequence.

Crafted from grade 5 titanium, the calibre B1.618 is able to withstand shocks of up to 6000G in all positions. The superposition of titanium arches and curves, in various shades of black, the floating skeletonized flanges which adorn the movement, play with light and transparency to create a sculptural architecture that is both strong and ethereal.

The tourbillon cage, the main plate and bridges, are all crafted from titanium and finished by hand, using mineral sands and natural fibres. Every wheel of the B1.618 gear-train is decorated by hand and coated with rhodium.

Thanks to peerless Haute Horlogerie techniques and the use of noble materials, featuring a sporty and technological soul, Bianchet timepiece collection reinterprets mechanical art in contemporary high-horology.

The new Tourbillon B1.618 Openwork Titanium-Carbon blue and green editions feature a hand-finished case in Grade 5 Titanium on the bezel and back, mixed with a light carbon fiber composite infused with titanium powder, stylishly signed with two soft colourful rubber seams.

These sporty-chic Haute Horlogerie timepieces are limited to 21 pieces each.

Technical details

Model: Bianchet Tourbillon B1.618 Openwork Titanium-Carbon

Case
Grade 5 titanium and carbon composite infused with titanium powder
Crown: Grade 5 titanium
Finished by hand
Sapphire crystal with antireflective coating, case front and case back
Case dimensions: 43 x 50 x 13 mm
Shock resistance: 6000 G
Water resistance: 50 metres (5 ATM)

Movement
Calibre B1.618
Tourbillon 60 seconds – hand wound
Frequency: 3hz – 21,600 vph
Variable inertia balance wheel with 4 gold inertia blocks
Tourbillon cage, main plate and bridges in grade 5 titanium
Rhodium coated wheels with hand finishing
Bridges: sandblasted, satin-brushed, hand polish beveling & black DLC finish
Power reserve: approx. 105 hours (+/-5%)

Strap
Organic vulcanised rubber
Folding clasp in grade 5 titanium

Edition
Blue version: Limited edition of 21 pieces
Green version: Limited edition of 21 pieces

Weight
48 grams

Origin
Entirely made in Switzerland

Guarantee
5 years

Certification
Authenticity Certificate registered on the Swiss blockchain

Price
55’000 CHF