The Seiko A781-400B is a watch model based on the A781 movement.
Parts List
| ESBW34LU01 | crystal - crystal (inorganic) |
| 0F332BZ12 | case back gasket - case back gasket |
| 86581240 | crystal gasket - plastic gasket for crystal |
| 80602083 | pusher |
| 80602344 | pusher - front button |
| 80602364 | pusher - front button |
| 80602383 | pusher - button(10h) |
| AL13B | band - band |
| A781400BN2A | others - case |
| A781400B | others - case back |
| 81503349 | others - case back screw |
| A160BS | others - push pin |
| A7811 | others - machine code |
| A781400BN2 | others - case |
| 81350740 | others - button spring |
| 81350760 | others - button spring (front) |
| 81400709 | others - button spring clip |
| EG0060B01 | others - button gasket |
| 81400683 | others - button spring clip |
| EZ0105B01 | others - button gasket |
| 81400803 | others - button spring clip |
Other models with the same movement