The Seiko V657-0A90 is a watch model based on the V657 movement.
Parts List
| 290P42LN03 | crystal - crystal (inorganic) |
| 8K55C2SNW1 | crown - crown (3h) |
| FE308BA13 | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| A35A06SMS0A | pusher - button |
| F1L8PG | band - band |
| 1AB080L4BEC | others - hour hand |
| 2AB125L4BEC | others - minute hand |
| 3BA037F0BAH | others - sub hand |
| 3BA037F0BAD | others - sub hand |
| 1AB080L4BEN | others - hour hand |
| 2AB125L4BEE | others - minute hand |
| 3AX120F0AES | others - second hand |
| A100BS | others - push pin (for mb) |
| V6570A9001C | others - case |
| V6570A9002C | others - case |
| V6570A9003C | others - case |
| 0351892 | others - winding stem |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |