Section 18 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof 91 Clocks and watches and parts thereof 91 01 Wrist-watches, pocket-watches and other watches, including stop-watches, with case of precious metal or of metal clad with precious metal. 91 01 11 With mechanical display only 91 01 11 00 With mechanical display only Commodity Code Description 91 01 11 00 000 With mechanical display only
