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, etc, of 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
