You&#x27;re serious?  There are a few centuries of history in amazing timekeeping engineering -- long before, guffaw, CNC.  Just a random link to a Breguet, for instance:<p><a href="http:&#x2F;&#x2F;www.breguet.com&#x2F;en&#x2F;house-breguet&#x2F;manufacture&#x2F;marie-antoinette-pocket-watch" rel="nofollow">http:&#x2F;&#x2F;www.breguet.com&#x2F;en&#x2F;house-breguet&#x2F;manufacture&#x2F;marie-an...</a>