Bell & Ross designers have borrowed the graphic characteristics of the turn coordinator to create an original and innovative display of the time.

The dial comprises two independent concentric discs, graduated to 12 hours (B) and 60 minutes (c), respectively. Beneath the crystal, a vertical white marker (A) indicates the large digits of the hours and the small digits of the minutes. the time is read directly beneath the indicator, from top to bottom.

BR 01 Turn Coordinator – Dial elements

A. Repère des indications horaires – C. Disque des minutes – B. Disque des heures

The dial reveals two windows, separated by a line symbolizing a plane.

• The upper window is entirely dedicated to reading the time. the lower window is opaque, giving priority to the area displaying the time.
  
• The anti-reflective, matte black carbon finish of the case is inspired by the color of an instrument panel, designed to make the dials easier
  to read by eliminating reflections.

The BR 01 Turn Coordinator is highly sophisticated. the technical challenge posed by its design and its production required the collaboration of the best watchmaking engineers.

• Since each disc weighs 30 times more than a watch hand, ultra-light discs had to be created in order to maintain the power reserve and accuracy of the watch. Furthermore, each disc needed to be sufficiently resistant so as not to become deformed and risk any friction. this dual challenge required the development of specific materials and new techniques.
  
• As they rotate, an adjustment to the nearest micron ensures that the discs are constantly parallel. the accuracy of the assembly requires all the expertise of master watchmakers.