The Seiko YT57-0B40 is a watch model based on the YT57 movement.
Parts List
| 290P42LN03 | crystal - crystal (inorganic) |
| 200P02LN03 | crystal - crystal(case back) |
| 8K55C2SNG1 | crown - crown |
| 8K55C2SNW1 | crown - crown (3h) |
| FE298BA11 | case back gasket - case back gasket |
| 86581741 | crystal gasket - plastic gasket for crystal |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86565320 | crystal gasket - plastic gasket for crystal |
| F1H3JG | band - band |
| 2AB115F0BEE | others - minute hand |
| 1AX075FPBFN | others - hour hand |
| 2AB115F0BFN | others - minute hand |
| 2AB115F0BES | others - minute hand |
| 1AX075FPBES | others - hour hand |
| 3AX120F0AEW | others - hand |
| 3AX120F0AAX | others - second hand |
| 1AX075FPBEE | others - hour hand |
| 3AX120F0AES | others - second hand |
| A100BS | others - push pin (for mb) |
| 0351651 | others - winding stem |
| AD006BAD1 | others - crown and stem gasket |
| YT570B4001Z | others - case |
| YT570B4002Z | others - case |
| YT570B4003Z | others - case |
| YT570B4004Z | others - case |