Time Interval

One-fifth of a second accuracy takes years to master. It is to this day one of the most sophisticated complications in the watchmaking mechanism and one of the hardest to perfect. Several construction types have been developed, but the most prestigious and spectacular one is the columnwheel chronograph.


Developed at the design and technical department of Audemars Piguet, the Royal Oak Concept Laptimer Michael Schumacher features a pending patent covering its unique functionality, which is based on a mechanism incorporating no fewer than three column wheels. One column wheel, located at the six o’clock position, controls the chronograph sequence, while the two at the 12 o’clock position control the complex laptimer sequence.


A chronograph is a standard watch fitted with an auxiliary mechanism that measures and displays continuous or discontinuous spans of time without affecting the watch’s time-keeping functions. A center chronograph hand is started, stopped and restarted at will, then returned to zero by actioning one or more push-pieces. It is both useful in daily life and remarkably complex in technical terms.

Split Second Hand

Split second chronographs are fitted with an additional seconds hand that can be stopped in its tracks in order to measure an intermediate, or to maintain a reference time.

Made in Le Brassus

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