The Seiko 5Y30-5B40 is a watch model based on the 5Y30 movement.
Parts List
| BA5N17JN01 | crystal |
| BA5N17JN | crystal |
| 30N97NN1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0H2600B01 | case back gasket - case back gasket |
| 0H2600B0 | case back gasket |
| B1575G | band |
| B1576G | band |
| B1575G-BK3G | clasp - clasp |
| B1576G-BK3G | clasp - clasp |
| A120BS | others - push pin (for lb) |
| 5Y305B40 | others - case back |
| 5Y305B4025 | others - case |
| 5Y305C90XS14 | others - dial |
| 5Y305D20XB14 | others - dial |
| 5Y305D60XG14 | others - dial |
| 5Y305E00XS14 | others - dial |
| 5Y305E10XB19 | others - dial |
| 81100859 | others - pipe |
| 82820890 | others - case ring |
| 0351671 | others - winding stem |
| 08T17DGM | others - minute hand |
| 08T17DGH | others - hour hand |
| 2BC085A1BNG | others - minute hand |
| 08T45NGM | others - minute hand |
| 1BC060A1BNG | others - hour hand |