The Seiko V657-0A20 is a watch model based on the V657 movement.
Parts List
| 290A15JN02 | crystal - crystal |
| 1E45A2SNW1 | crown - crown |
| FE318BAA3 | case back gasket - case back gasket |
| A35A02SMS0 | pusher - button |
| 4HX6ZB | band - band |
| 1AX075FPBSM | others - hour hand |
| 3BA040F2BAD | others - sub hand |
| 1AX075FPBSV | others - hour hand |
| 2AX110FDBSW | others - minute hand |
| 2AX110FDBSS | others - minute hand |
| 3BA040F2BAR | others - sub hand |
| V6570A20 | others - case back |
| 83200273 | others - button spring clip |
| AD006BAD1 | others - crown and stem gasket |
| 0878220 | others - date dial |
| 0878221 | others - date dial |
| A200BS | others - push pin |
| V6570A58X913 | others - dial |
| V65720 | others - machine code |
| V6578121XB13 | others - dial |
| V6570A2001B | others - case |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |
| 3AX125F3ASR | others - second hand |
| 3AX125F3ASS | others - second hand |
| 290A15JN02 | crystal - crystal |
| 1E45A2SNW1 | crown - crown |
| FE318BAA3 | case back gasket - case back gasket |
| A35A02SMS0 | pusher - button |
| 4HX6ZB | band - band |
| 1AX075FPBSM | others - hour hand |
| 3BA040F2BAD | others - sub hand |
| 1AX075FPBSV | others - hour hand |
| 2AX110FDBSW | others - minute hand |
| 2AX110FDBSS | others - minute hand |
| 3BA040F2BAR | others - sub hand |
| V6570A20 | others - case back |
| 83200273 | others - button spring clip |
| AD006BAD1 | others - crown and stem gasket |
| 0878220 | others - date dial |
| 0878221 | others - date dial |
| A200BS | others - push pin |
| V6570A58X913 | others - dial |
| V65720 | others - machine code |
| V6578121XB13 | others - dial |
| V6570A2001B | others - case |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |
| 3AX125F3ASR | others - second hand |
| 3AX125F3ASS | others - second hand |