The Seiko V657-6020 is a watch model based on the V657 movement.
Parts List
| 290PX6LN03 | crystal - crystal (inorganic) |
| 1E50C3SNG0 | crown - crown |
| 1E50C3SNW0 | crown - crown |
| FE308BAA1 | case back gasket - case back gasket |
| 86580835 | crystal gasket - plastic gasket for crystal |
| 80633451 | pusher - button |
| 80633452 | pusher - button |
| F0K3GG | band - band |
| F0K3HG | band - band |
| 3BX037FBBAY | others - small hand(12h) |
| 3BA035FMBAE | others - sub hand |
| 3AX125F3ASW | others - second hand |
| 1AX075FPBSG | others - hour hand |
| 1AX075FPBSS | others - hour hand |
| 2BX115F0BSS | others - minute hand |
| 2BX115F0BSG | others - minute hand |
| 3BX037FBBAR | others - small hand(12h) |
| 0G325BA11 | others - rotating bezel gasket |
| V6576020WFA | others - case |
| 86014595 | others - rotating bezel |
| V6576020WFB | others - case |
| 86014596 | others - rotating bezel |
| A200CS | others - push pin |
| 81354210 | others - button spring |
| 83200273 | others - button spring clip |
| AD006BA11 | others - crown and stem gasket |
| 0A0150B0A | others - crown and stem gasket |
| 3BA035FMBAD | others - sub hand |