The Seiko W170-4A20 is a watch model based on the W170 movement.
Parts List
| FE278BA11 | case back gasket - case back gasket |
| 71Q6ZG | band - band |
| 71Q7VG | band - band |
| 71Q7WG | band - band |
| 71Q7ZG | band - band |
| 71Q6ZG-LK2 | band - link |
| 71Q7VG-LK6 | band - link |
| 71Q7WG-LK6 | band - link |
| 71Q7ZG-LK2 | band - link |
| 71Q7WG-PB1 | clasp - parts for buckle |
| 71Q7ZG-BKB | clasp - buckle |
| 71Q7ZG-PB1 | clasp - parts for buckle |
| 71Q6ZG-PB1 | clasp - parts for buckle |
| 71Q7VG-PB1 | clasp - parts for buckle |
| 71Q6ZG-BKB | clasp - buckle |
| 71Q7VG-BKE | clasp - buckle |
| 71Q7WG-BKE | clasp - buckle |
| W1704A2001E | others - case |
| W1704A2004E | others - case |
| W1704A2002E | others - case |
| W1704A2003E | others - case |
| A180BS | others - push pin |
| S180BS | others - push pin |
Other models with the same movement