A limited series of 500 pieces for Breitling's Bentley B06. As its name suggests, it is equipped with the IWC-manufactured B06 calibre featuring the 30-second chronograph system inspired by a 1926 Breitling patent, guaranteeing an accurate reading of times measured to one-eighth of a second. Both case and bezel feature a black carbon-based coating. Black mother-of-pearl reflections play on the dial, contrasting with the matt counters and red and white indications. The dial itself is characterised by the presence of a variable tachymeter, based on a circular slide rule: used in conjunction with the chronograph, this system makes it possible to measure an average speed whatever the time elapsed, the distance covered or the speed reached. It is therefore a system with optimised operation compared to the usual tachometers, which are limited to observations based on times of less than 60 seconds. The Bentley B06 Midnight Carbon is available with either a black rubber strap with Bentley's signature or a strap combining rubber and crocodile leather.