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 02 WRIST-WATCHES, POCKET-WATCHES AND OTHER WATCHES, INCLUDING STOP-WATCHES, 91 02 12 WRIST-WATCHES, ELECTRICALLY OPERATED, WITH OPTO-ELECTRONIC DISPLAY ONLY Commodity Code Description 91 02 12 00 WRIST-WATCHES, ELECTRICALLY OPERATED, WITH OPTO-ELECTRONIC DISPLAY ONLY