Gear design aka Clock work been knows since ancient times and many mechanisms including printers share same things.
Also, I think it kinda really far cry to call clock tower direct ancestor of watch. Unless we talking about embarrassingly small clock tower. Because difference in mechanism between oversized cuckoo clock and automatic mechanical watch is as profound as between quartz and mechanical.
My point was once technology is mature and perfected there is no difference how old it is. 100 years old is as good 1000 years unless some progress is involved.