Wonder Makers sell the Fire Watch on their website. That explains the aesthetics, unless they're using a different tool there.
The trick doesn't seem to be available on the website though. There is a chance that it was not one trick but a combination which they created. Regardless, it'll probably appear on their website if they are convinced it'll get enough buyers.
As for how the card Chris named was 'shot' out, I don't know. It could have been a subtle psychological force, like the forces Derren Brown reportedly uses? But judging from their performance style, I think it is much more probable that since the aesthetics of the trick was so brilliant that Chris had pre-decided with them which card he'd name so that their brand got promoted. That'd be a good thing to do, in my opinion, seeing that the Magic Five has wonderful products but since it's Russia-based, it's not garnered enough attention.
Which means that part is probably for the sake of promotion. If not, well, we might find out in a few months. In exchange of 200$ of course.