F.P. Journe: I've heard it!
I am no connoisseur when it comes to the tone of chiming watches but I can certainly tell you the sound was *faint*. More so than any other minute repeater I've heard.
As you might see upthread, I left that to a professional, and now use a set of regular spring bars in place of the gold screwed bars.
IWC: Such a cool watch.
That and the "split minute" are both such interesting, innovative divers. IWC did such great stuff in that generation of Aquatimer.