The Seiko V657-8020 is a watch model based on the V657 movement.
Parts List
| 280P03LN03 | crystal - crystal |
| 8M45B7SNW1 | crown - crown |
| FE318BAA3 | case back gasket - case back gasket |
| 86590035 | crystal gasket - plastic gasket for crystal |
| 86592270 | bezel gasket - plastic gasket for bezel |
| 80632919 | pusher - button |
| AD006BAA1 | pusher - button gasket |
| 80E5ZB | band - band |
| 8D24ZZ | band - leather band |
| 8D25ZZ | band - band |
| 8D26ZZ | band - band |
| 3BA035F0BAC | others - sub hand |
| 3BX110F3BSS | others - second hand |
| 3BA035F0BNS | others - small hand(12h) |
| 2AB110L0BSS | others - minute hand |
| 1AB075L0BSS | others - hour hand |
| 1AB075L0BSD | others - hour hand |
| 2AB110L0BSD | others - minute hand |
| A120BS | others - push pin (for lb) |
| A200BS | others - push pin |
| 83200273 | others - button spring clip |
| AD006BA11 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| V657802062A | others - case |
| 87301854 | others - bezel |