I had to watch the video over and over to understand what you are trying to explain but I think I understand the general concept behind this dead seconds complication now.
FP Journe's 2nd generation tourbillon has this added complication as well as some of Richard Habring's watches, but we don't see this complication that often from other brands. How difficult, in general laymans terms, is it to create a dead secs complication as compared to a chronograph, perpetual calendar, or tourbillon complication?
Cheers,
Anthony