Crown position 1: the pace of time slows by half, so the value of one normal hour is displayed as a half-hour on the dial. The Clef du Temps prototype brought the second highest price of €280,000 ($410,000) at the recent Only Watch charity auction to benefit children affected by Duchenne muscular dystrophy. The real trick is that no matter how long the watch is left in position 1 or position 3, returning the crown to position 2 instantly returns the hands to the correct current time. The Clef du Temps will be produced in a limited series of 24 pieces, allowing 24 lucky people the luxury of controlling the passage of time, at least on their wrists. Crown position 2: the pace of time is normal, i.e. one hour remains one hour. Like all Confrérie...