The Seiko H557-5100 is a watch model based on the H557 movement.
Parts List
| ES2W74GN00 | crystal - crystal |
| 40M76NA1 | crown |
| 40M76NS1 | crown |
| 0A2880N01 | case back gasket - case back gasket |
| 86561880 | crystal gasket - plastic gasket for crystal |
| 80613201 | pusher - button |
| 80613209 | pusher - button |
| AA42A | band - band |
| LA20A | band - band |
| 08SC16AG | others - second hand |
| 08T06CPH | others - hour hand |
| 08T06CPM | others - minute hand |
| EG0060B01 | others - button gasket |
| 83200271 | others - button spring clip |
| 0354655 | others - winding stem |
| H557510061 | others - case |
| H557510075 | others - case |
| 84300921 | others - dial ring |
| 84300925 | others - dial ring |
| A180CS | others - push pin |
| H5571 | others - machine code |
| H5575110XG18 | others - dial |
| H5575110XS17 | others - dial |
| 08T06CLH | others - hour hand |
| 08T06CLM | others - minute hand |
| 08SC16ES | others - second hand |