The Seiko W401-4160 is a watch model based on the W401 movement.
Parts List
| ESBW87AM01 | crystal - crystal |
| ESBW87AM02 | crystal - crystal |
| 0G272BE11 | case back gasket - case back gasket |
| 80634390 | pusher - button |
| 80634410 | pusher |
| AL89D | band - band |
| W4014160N2A | others - case |
| W4014160N2B | others - case |
| A170BS | others - push pin |
| EG0060B01 | others - button gasket |
Other models with the same movement
| W401-4010 |
| W401-4020 |
| W401-4040 |
| W401-4050 |
| W401-4070 |
| W401-4110 |
| W401-4130 |
| W401-413A |
| W401-4140 |
| W401-4150 |
| W401-4180 |
| W401-5010 |
| W401-5050 |
| W401-5070 |
| W401-5080 |
| W401-5110 |
| W401-5120 |
| W401-5130 |
| W401-5170 |
| W401-5180 |