That means you can actually use the chrono without being afraid the hands might slip out of position after a reset. Nice!
Huge project. Please provide some pictures, that would be awesome!
I have built a franken Ingenieur Chrono myself, with a 79350 calibre, genuine dial and hands, gen clasp and aftermarket AR crystal. Still nothing compared to a Doppelchronograph, but I know how much work and time a project like that consumes.