Zurich. In the history of watchmaking, 'complication' refers to additional functions beyond telling time. Some watches are fitted with extra features such as a date display system, alarm, or stopwatch. Currently, the world's most complicated watch has 63 different such additional functions, which is considered a marvel in the field of watchmaking.In 2015, artisans from the prestigious Swiss watchmaking company Vacheron Constantin unveiled a unique pocket watch named 'Reference 57260'. This watch was specially made according to the demands of an unknown private collector, which included requirements like the Hebrew calendar and a special chronograph capable of recording the time of...