I knew (was in touch with, and sometimes even consulted by) Carlos when he was active on the net in horological matters.
Like the other internet sources so far quoted (and most of the others one likely finds on the 'net) I have to caution against taking all "facts" and conclusions presented literally and at face value.
In my humble experience and very limited knowledge of the field, Suitbert and very few others actually know what they are talking about, based on years of research, learning, and actually working with and talking with individuals - watchmakers, historians, academics, within the world of high horology, not just cruising the internet and assimilating information of often dubious foundation or historical context. The standards of research on the internet are really far from "authoritative" and certainly not "peer reviewed."
I hope no one misunderstands the spirit of my comments; I don't think Watchismo ever claimed to be an authority on the subjects he writes about.
(and no, I don't make such claims either...)
Cheers,
TM