The Seiko V501-0420 is a watch model based on the V501 movement.
Parts List
| 200A23LN03 | crystal - crystal |
| 8M35B1SNW0 | crown - crown |
| 0F180BA1S | case back gasket - case back gasket |
| FFQ3JZ | band - band |
| FDR8JB | band - band |
| FDR9JB | band - band |
| FFQ2JZ | band - band |
| FDS0JB | band - band |
| FEX7JB | band - band |
| FFQ1JZ | band - band |
| FF74JB | band - band |
| 3BA090F1BAN | others - second hand |
| 3BA090F1BAR | others - second hand |
| 3BA090F1BAY | others - second hand |
| 0354786 | others - winding stem |
| 82834130 | others - case ring |
| V501042001C | others - case |
| V501042090A | others - case |
| V501042090E | others - case |
| V501042090D | others - case |
| V501042090C | others - case |
| V501042090B | others - case |
| A140BS | others - push pin |
| AD006BA12 | others - crown gasket |