The Seiko H601-0020 is a watch model based on the H601 movement.
Parts List
| 310W39HN01 | crystal |
| 310W39HN | crystal |
| 45EA1NS1 | crown |
| FE348BAA1 | case back gasket |
| EB0075B0A | case back gasket - button gasket |
| 0A2770B0 | case back gasket |
| 86582770 | crystal gasket |
| 80609319 | pusher |
| ZLL34J | band - band |
| 1AX075FCBLG | others - hour hand |
| 2AX110FCBLG | others - minute hand |
| 8281231A | others - case ring |
| 0A2770B01 | others - rotating bezel gasket |
| H6010020 | others - case back |
| 81401679 | others - washer |
| 84309375 | others - dial ring |
| 8995219A | others - back plate |
| A200CS | others - push pin |
| H601002LXB14 | others - dial |
| H60173 | others - machine code |
| H601002061 | others - case |
| 86012555 | others - rotating bezel |
| 0351161 | others - winding stem |
| 81351010 | others - button spring |
| 0354113 | others - winding stem |
| 83200271 | others - button spring clip |
| 0A0150B0A | others - crown and stem gasket |
| 3AX110F3AL2 | others - second hand |
| 89995390 | others - pusher spacer |
| 11SC61PG | others - second hand |
| 11PG1LGM | others - minute hand |
| 11PG1LGH | others - hour hand |