Explanatory notes
… plate and the bridges. The plate, to which the bridges are fixed by screws and pins, is the basic support of the … assembled movement, together with the dial and hands, is fitted in the container or case. The balance‑wheel, the escapement parts and the train parts are finely pivoted. In the cheaper types of clocks and watches, …Legal note
… not cover : (a) Clock or watch glasses or weights (classified according to their constituent material); … as the case may be); (c) Parts of general use defined in Note 2 to Section XV, of base metal (Section XV), … heading 71.15); clock or watch springs are, however, to be classified as clock or watch parts (heading 91.14); …
