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 08 Watch movements, complete and assembled 91 08 11 With mechanical display only or with a device to which a mechanical display can be incor Commodity Code Description 91 08 11 00 With mechanical display only or with a device to which a mechanical display can be incor
