Am i correct in thinking the chrono sweep hand when activated is only synced up
to the chrono monocounter and not the main dail's hour and minute hand? if so how
is it possible to tell the true accuracy of the main dial's timekeeping i.e. how many seconds it's
losing or gaining per day? Is it easy/possible to sync the chrono sweep hand with the main dial's timekeeping?
I hope my query makes sense! apologies