The Seiko V657-8040 is a watch model based on the V657 movement.
Parts List
| 290P03LN03 | crystal - crystal |
| 8M45B7BNG0 | crown - crown |
| 8M45B7SNW1 | crown - crown |
| 0G320BA11 | case back gasket - rotating bezel gasket |
| FE308BAA1 | case back gasket - case back gasket |
| 86580835 | crystal gasket - plastic gasket for crystal |
| 86580830 | crystal gasket - plastic gasket for crystal |
| AD006BAA1 | pusher - button gasket |
| 80637419 | pusher - button |
| 80637411 | pusher - button |
| 7141ZG | band - band |
| 7BX1ZB | band - leather band |
| 7BX0ZB | band - leather band |
| 3AX110F3AAE | others - second hand |
| 3AX110F3AA4 | others - second hand |
| 3AX110F3AAJ | others - second hand |
| 2AX115FNBSW | others - minute hand |
| 3AX110F3AAH | others - second hand |
| 3BA037F0BNS | others - sub hand |
| 3BA037F0BAF | others - sub hand |
| 3AX110F3AAK | others - second hand |
| 1AX080FPBSS | others - hour hand |
| 2AX115FNBSS | others - minute hand |
| 3BA037F0BAD | others - sub hand |
| 1AX080FPBSG | others - hour hand |
| 2AX115FNBSG | others - minute hand |
| 1AX080FPBSB | others - hour hand |
| 1AX080FPBSW | others - hour hand |
| 2AX115FNBSB | others - minute hand |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BA11 | others - crown and stem gasket |
| 0351892 | others - winding stem |
| 0878220 | others - date dial |
| 0878221 | others - date dial |
| 84323175 | others - dial ring |
| 84323176 | others - dial ring |
| 84323177 | others - dial ring |
| 84323178 | others - dial ring |
| A200BS | others - push pin |
| V65720 | others - machine code |
| V6578060XB13 | others - dial |
| V6578060XL14 | others - dial |
| V6578060XR13 | others - dial |
| V6578060XS13 | others - dial |
| V6578060XY13 | others - dial |
| V65780407KA | others - case |
| 8706001A | others - rotating bezel |
| V65780407YA | others - case |
| 8706001B | others - rotating bezel |
| V65780407KB | others - case |
| V65780407KC | others - case |
| 8706001C | others - rotating bezel |