The Seiko V657-0B40 is a watch model based on the V657 movement.
Parts List
| SA0P40JN03 | crystal - crystal |
| 8K55C6SNW1 | crown - crown (3h) |
| FE308BA13 | case back gasket - case back gasket |
| 86584560 | crystal gasket - plastic gasket for crystal |
| 86584561 | crystal gasket - plastic gasket for crystal |
| C35A05SMS0A | pusher - button |
| 4J25JB | band - band |
| 3BA030F4BNS | others - sub hand |
| 3BA030F4BN1 | others - sub hand |
| 1BA077F0BES | others - hour hand |
| 2BA117F0BES | others - minute hand |
| 3AA120F2ANS | others - hand |
| 1BA077F0BE1 | others - hour hand |
| 2BA117F0BE1 | others - minute hand |
| 3AA120F2AN1 | others - second hand |
| A110BS | others - push pin (for mb) |
| 0878220 | others - date dial |
| 84331024 | others - dial ring |
| 84331025 | others - dial ring |
| V6570B78XB13 | others - dial |
| V6570B78XS13 | others - dial |
| V65720 | others - machine code |
| 0351892 | others - winding stem |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |
| V6570B4001D | others - case |
| V6570B40 | others - case back |
| V6570B4002D | others - case |