These were the days when the leaders of the industry worked with their own hands as well as with their heads. We may imagine the master seated in the front room of his shop studying over a new model, or putting together and decorating one already made; or, perhaps, making with his own hands some of the most delicate parts. From the back rooms would come the sound of tapping or filing as the journeymen and apprentices were hard at work upon their various tasks. Meanwhile, perhaps some apprentice, standing outside the door, would call out to passers-by and urge them to step in and buy. This was a favorite form of advertising in that time. For that matter, we still have our "barkers" and "pullers-in" at Coney Island and elsewhere. Everything about the small business was carried out under the personal direction of the master and, where necessary, by his own hand. The phrase "clockmaker to the King" meant something more when applied to such a man than merely that royalty had purchased some product of his craft. Such a one was Thomas Tompion, often called "the father of English watchmaking." He was the leader of his craft in the time of Charles II and he, more than anyone else, worked out the inventions of Hooke for actual manufacture. He left his father's blacksmith shop to become a clock-maker, from this he went on to the more delicate work of making watches, and at last became a famous master of his guild. It may fairly be said of him that he set the time for history in his day, for most of the royalty and great men of Europe timed all their doings from banquets to battles by Tompion watches. Meanwhile, he, too, was making watchmaking history by his improvements. Tompion made watches with hair-springs, balance-wheels and escapements with various improvements. His design of the regulator is nearly that in modern use. His cases, too, were as famous as the movements that he made. The so-called "pendulum watches" were then much in fashion, and Tompion met the demand by making a number of them. They did not, of course, work with a pendulum; but one arm of the old foliot balance could be seen through an opening in the case or dial, and looked like a pendulum swinging to and fro. To read the advertisements of that day one would think that all lost or stolen watches were of Tompion's making, so often does his name appear in them.