The Seiko V657-0A30 is a watch model based on the V657 movement.
Parts List
| 300P66LN03 | crystal - crystal |
| 8K60D2SNWA | crown |
| 8K60E0SNW1 | crown - crown (3h) |
| FH3080B01 | case back gasket - case back gasket |
| 86178611 | crystal gasket - plastic gasket for crystal |
| HR8A02SMS0A | pusher - button |
| F1K5JG | band - band |
| A* | band - leather band |
| FFJ0JZ | band - band |
| 1AC075F0BNS | others - hour hand |
| 2BC120F0BNS | others - minute hand |
| 3AX125FNANS | others - second hand |
| 3BA040F4BAC | others - sub hand |
| 3BA040F4BAE | others - sub hand |
| 83200273 | others - button spring clip |
| AD006BAD1 | others - crown and stem gasket |
| AD006BA11 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 81354210 | others - button spring |
| V6570A3001 | others - case |
| V6570A3002 | others - case |
| 0878220 | others - date dial |
| S160BS | others - push pin |
| V6570A24XL13 | others - dial |
| V6570A24XL23 | others - dial |
| V6570A24XS13 | others - dial |
| V6570A24XY13 | others - dial |
| V6570A24XY23 | others - dial |
| V65720 | others - machine code |