The Seiko V821-0780 is a watch model based on the V821 movement.
Parts List
| 220A33J30A | crystal - crystal |
| 220A33J60A | crystal - crystal |
| 210A02JN02 | crystal - crystal (inorganic) |
| 9M35A5SNW0 | crown - crown |
| 0F190BA1S | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| W171AW | band - band |
| W173AW | band - band |
| 1HA055FABA6 | others - hour hand |
| 1HB055FABNS | others - hour hand |
| 2HA085FCBA6 | others - minute hand |
| 2HB080FABNS | others - minute hand |
| 3HA090F1BAP | others - second hand |
| 3HA090F1BNS | others - second hand |
| V821078029C | others - case |
| 82817370 | others - case ring |
| V821078029F | others - case |