The Seiko W170-4A50 is a watch model based on the W170 movement.
Parts List
| 0G280BA12 | case back gasket |
| FFK7JB | band - band |
| FD45JZ | band - band |
| W1704A5001 | others - case |
| W1704A5002 | others - case |
| W1704A5003 | others - case |
| T200BS | others - push pin |
Other models with the same movement
| W170-4A00 |
| W170-4A10 |
| W170-4A20 |
| W170-4A30 |