| 3926.90.60 | 10 | Synchronous belts | No. | | | |
| 4010.35 | | Endless synchronous belts of an outside circumference exceeding 60 cm but not exceeding 150 cm: | | | | |
| 4010.36 | | Endless synchronous belts of an outside circumference exceeding 150 cm but not exceeding 198 cm: | | | | |
| 5910.00.10 | 20 | Synchronous belts | No. kg | | | |
| 8501.10.20 | 00 | Synchronous, valued not over $4 each | No. | 6.7% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 90% |
| 9105.99.10 | 00 | Standard marine chronometers having spring-detent escapements | No. Jwls. | 17¢/each + 2.5% + 1¢/jewel | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P, SG) | $4.50 each + 65% + 25¢/jewel |
| 9106 | | Time of day recording apparatus and apparatus for measuring, recording or otherwise indicating intervals of time, with clock or watch movement or with synchronous motor (for example, time registers, time-recorders): | | | | |
| 9107.00 | | Time switches with clock or watch movement or with synchronous motor: | | | | |