Section 18 OPTICAL, PHOTOGRAPHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION , MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; M USICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 91 Clocks and watches and parts thereof 91 04 Instrument panel clocks and clocks of a similar type for vehicles, aircraft, spa 91 04 00 91 04 00 00 Commodity Code Description 91 04 00 00 00 Instrument panel clocks and clocks of a similar type for vehicles, aircraft, spacecraft