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 14 Other clock or watch parts 91 14 20 Jewels for clocks and watches 91 14 20 00 Jewels for clocks and watches Commodity Code Description 91 14 20 00 00 Jewels for clocks and watches
