Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 716
t takes a mainspring seven widths wider thanthe regular 18 size American movement, allowing a thinnerspring and more coils, the result of which is greater uniformityof power with less liability of breakage ; three and three-fifthsturns of the spring run the watch twenty-four hours. The barrel in… … Mr. Kincaid only took a course of four months at theInstitute, and altogether has been three and a half years at thetrade It is need . that he is very proud of his watch. He cut the plates, I item-wind wheels and pinions, barrel, screws, etc , out of solid stock, and made the train,including the…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
