| Chapter Code | Chapter Description |
|---|
| 91143020 | DIALS : FOR CLOCKS |
| 91141010 | SPRINGS, INCLUDING HAIR-SPRINGS : FOR WATCHES |
| 91149092 | OTHER : FOR CLOCKS |
| 91019920 | OTHER : STOP WATCHES |
| 91019120 | ELECTRICALLY OPERATED : STOP WATCHES |
| 91012900 | OTHER WRIST-WATCHES, WHETHER OR NOT INCORPORATING A STOP-WATCH FACILITY : OTHER |
| 91019910 | OTHER : POCKET WATCHES |
| 91021100 | WRIST-WATCHES, ELECTRICALLY OPERATED, WHETHER OR NOT INCORPORATING A STOP-WATCH FACILITY : WITH MECHANICAL DISPLAY ONLY |