The Seiko H601-540B is a watch model based on the H601 movement.
Parts List
| ESFW09LN01 | crystal |
| ESFW09LN | crystal |
| 40MH1NN1 | crown - crown |
| 0F260BAA3 | case back gasket - case back gasket |
| 0F260BAA | case back gasket |
| 86591790 | crystal gasket |
| 80605775 | pusher - button |
| B1688G | band |
| 3BA075F1BNG | others - second hand |
| 07SC43NG | others - second hand |
| EG0060B01 | others - button gasket |
| EB0055B01 | others - crown and stem gasket |
| 83200271 | others - button spring clip |
| 0351161 | others - winding stem |
| 07PC9LGM | others - minute hand |
| 07P25LGH | others - hour hand |