The Seiko S129-400A is a watch model based on the S129 movement.
Parts List
| REDN00LM01 | crystal |
| REDN00LM | crystal |
| 80621500 | pusher |
| 80621520 | pusher |
| 95011103 | band - other |
| BZA08N | band - band |
| 81501983 | others - screw |
| 82600023 | others - battery hatch |
| 95010800 | others - print changeover switch cover |
| 95010820 | others - ext.changeover switch cover |
| 95010880 | others - paper cover with printer |
| 95010900 | others - power switch cover |
| 95010920 | others - paper feed switch cover |
| 95010963 | others - upper case |
| 95020280 | others - switch lock lever |
| 95020300 | others - switch |
| 95100623 | others - roll paper cover (holder) |
| 95100660 | others - roll paper cutter |
| S1292 | others - machine code |
| S129400A | others - case |
Other models with the same movement