The Seiko W620-4150 is a watch model based on the W620 movement.
Parts List
| 0F300BAD1 | case back gasket - case back gasket |
| 80633919 | pusher - button |
| 8063919 | pusher - button |
| 87010259 | pusher - front button |
| 80710259 | pusher - button |
| 8E03ZZ | band - band |
| 8E02ZZ | band - leather band |
| 8E05ZZ | band - band |
| 8E01ZZ | band - band |
| 8E04ZZ | band - band |
| 8D93ZZ | band - band |
| 8D95ZZ | band - band |
| 8D94ZZ | band - leather band |
| 8D97ZZ | band - band |
| 8D96ZZ | band - leather band |
| 8D98ZZ | band - band |
| 8E00ZZ | band - band |
| 8D99ZZ | band - rubber band |
| W6204150N2D | others - case |
| W6204150N2C | others - case |
| W6204150N2B | others - case |
| W6204150N2A | others - case |
| AD006BA11 | others - crown and stem gasket |
| 81351639 | others - button spring |
| W6204150N2H | others - case |
| W6204150N2G | others - case |
| W6204150N2E | others - case |
| W6204150N2F | others - case |
| A130BS | others - push pin |
| W6204150N2J | others - case |
| 83200211 | others - button spring clip |
| 81518259 | others - case back screw |