Story: A showcase of two Cartier hallmarks – the mystery clock, in which the hour and minute hands appear to float freely; and the panther, a recurring icon in the French label’s creations since 1914. Dial: A smaller, off-centered dial tells the time using two hands – one for the hour and one for the minute – which rotate in tandem with the “invisible” crystal discs that they are attached to. Case: A lavish, 3-D panther embellished with 533 brilliant-cut diamonds and pear-shaped emerald eyes embraces the 18k white gold and black lacquer case. Movement: Mysterious Hour 9981 MC calibre, which is built entirely by Cartier. Strap: Black alligator with an adjustable double-clasp in rhodium-finished 18k white gold and set with 43 brilliant-cut diamonds.