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

• The dial comprises three independent concentric discs, graduated for the hours and minutes. The seconds are displayed in the center on a disc, which is not graduated, but features a yellow marker. The hour reading is indicated by the yellow triangle, which appears on the outer hours’ disc. Minutes are read from the middle disc.

• The WES (West, East and South) indications are also displayed on this disc, as on the original instrument, and the N for North indication has been replaced by a yellow triangle marker for reading the hours.
  
  
• To allow the markers to stand out against the background, an airplane – identical to the one found on the original instrument – and yellow index marks are engraved under the glass.
  
  
• The anti-glare, matt black carbon finish of the case is inspired by the color of an instrumentation panel, designed to make the dials easier to read by eliminating glare.

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

BR 01 Heading Indicator / Flight Compass – Dial elements

A. Hour disc – B. Minute disc – C. Second disc

• Since each disc weighs 30 times more than a watch hand, ultra light discs needed to be created in order to not reduce the power reserve nor the accuracy of the watch. furthermore, each disc needed to be sufficiently resistant so as not to become deformed or risk any friction. This dual challenge has 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 requiresall the know-how of master watchmakers.

Bell & Ross designers have borrowed the graphic characteristics of the anemometer, or airspeed, to create an original and extremely legible display of time.

• To enhance legibility, the hour, minute and second graduations have been separated to promote the minutes on the main dial – as in the original instrument –, while the hours are displayed in the center.
  
  
• The three colors that indicate levels of criticality in the original instrument – green, white and yellow – also appear on the watch dial and indicate the zones by quarters of an hour.
  
  
• The hands and index marks are covered in a white photo luminescent coating, contrasting with the black of the dial, echoing the legibility principles of professional aeronautical instruments.
  
  
• The anti-glare, matt black carbon finish of the case is inspired by the color of an instrumentation panel, designed to make the dials easier to read by eliminating glare.

Movement	:	Mechanical automatic. ETA 2892.
Functions	:	Hours, minutes, seconds.
Case	:	46mm diameter.
Finish	:	Black PVD* steel.
Crown	:	Screw-in.
Dial	:	Three independent concentric discs, graduated for the hours and minutes. The seconds are marked out in the center on a disc, which is not graduated, featuring a yellow marker. The hour reading is indicated by the yellow triangle, which appears on the outer hours’ disc. Minutes are read from the middle disc.
Markers	:	A plane and yellow index marks are engraved under the glass.
Glass	:	Sapphire crystal with anti-glare coating.
Water-resistance	:	100 meters.
Straps	:	Rubber and heavy-duty synthetic fabric.

*PVD : Physical Vapor Deposition