Bianchet Tourbillon B1.618 Openwork Titanium

Technical specifications


  • Hours
  • Minutes
  • Seconds
  • Tourbillon


  • Manual Winding
  • Manufactured
  • Swiss Made


  • Tonneau
  • 43.00x50.00
  • Titanium
  • Brushed
  • 13.00mm


  • Sapphire

Water resistance

  • 5.00atm / 50.00m / 165.00ft


  • Pin Buckle
  • Titanium


  • Rubber
  • Black


  • 2021

Official description

A balance of proportions, a dramatic arc in each curve, the depth of the movement – if the Tourbillon B1.618 Openwork’s color accent catches the eye, it is the spirit behind it that draws you in. Uniting the sensory, cultural, mathematical and mechanical, this skeleton tourbillon was conceived and designed according to the principles of the Golden Ratio of 1.618 and the Fibonacci sequence. The tonneau shape of the case, the design of its movement, the Italian aesthetic sensibility: Everything within it expresses a harmony of lines and a natural sense of balance that makes it a watch of our time for our time.

New to the world of complicated watches, Bianchet is a creative contemporary Swiss watch brand founded on the modern reinterpretation of the Golden Ratio – 1.618 – in the world of fine watchmaking.