The Bentley Motors chronograph cultivates originality, but permeated by an eminently British sense of refinement and moderation. The gaze is immediately struck by the knurled finishing on the bezel, inspired by the Bentley control buttons. The case is distinguished by its imposing diameter. Breitling has combined this original design with an exclusive technical touch. The Bentley Motors chronograph features a unique mechanism known as the “30-second” type chronograph. The centre hand sweeps once around the dial in half a minute instead of the customary 60 seconds, an astonishing configuration that enables extremely accurate read-off to within 1/8th of a second. This distinctive feature is part of Calibre 25B, a movement stemming from the Breitling Chronométrie workshops and which is officially chronometer-certified, as indeed are all Breitling movements. In tribute to the automobile world, the Bentley Motors is equipped with another world exclusive feature, the “variable tachometer”, which enables one to measure average speed, regardless of the time elapsed, the distance covered or the speed reached.