Andrew,
Not much change in price considering the currency fluctuations.
FB1.3 is $260,400.
The early FB1.1 and 1.2 were about CHF 245,000 when the currencies were more stable.
There is no major change to the mechanicals. The platinum case is the new offering of FB1.3, as well as the subtle colour of the dial (nickel silver and black).
Chopard has a new Instagram department now and the young people are obviously doing their job
The raison d'etre of their existence is actually twittering or snap-chatting or whatever they do for a living.
There are other variants but we can't talk about them.....

Ferdinand Berthoud FB1.x
Regards,
MTF