gaganc1997

The answer to the last question is that there are actually six sapphire disks, carrying different functions. There are two replica Cartier on the case itself, which are the upper crystal and caseback crystal. There are four more that are functional, and which rotate: one for the hour hand, one for the minute hand; one that houses the rotor/movement, and a fixed sapphire disk holding the fixed replica Breiting wheel around which the movement rotates.