The Seiko W620-4190 is a watch model based on the W620 movement.
Parts List
| 0F300BAD1 | case back gasket - case back gasket |
| 0F300BAA1 | case back gasket - case back gasket |
| 80710335 | pusher - button |
| 80710336 | pusher - button |
| 80710337 | pusher - button |
| 8071033A | pusher - button |
| 80710338 | pusher - button |
| 80632459 | pusher - button |
| FE81JB | band - band |
| FE82JB | band - band |
| FDR2JZ | band - band |
| FDR1JZ | band - band |
| FDR3JZ | band - band |
| FDR4JZ | band - band |
| W6204190N2D | others - case |
| 82431037 | others - bezel |
| 81351630 | others - button spring |
| AD006BA11 | others - crown and stem gasket |
| 81518099 | others - case back screw |
| 81351639 | others - button spring |
| W6204190N2A | others - case |
| 82431035 | others - bezel |
| W6204190N2B | others - case |
| W6204190N2C | others - case |
| 82431036 | others - bezel |
| W6204190N2F | others - case |
| T180BS | others - push pin |
| W6204190N2E | others - case |
| 83200211 | others - button spring clip |