The Seiko H557-506A is a watch model based on the H557 movement.
Parts List
| ES3W08GN00 | crystal - crystal |
| 40M76NA1 | crown |
| 0A2880N01 | case back gasket - case back gasket |
| 86562500 | crystal gasket - plastic gasket for crystal |
| 80613201 | pusher - button |
| XGA45A | band - leather band |
| GA45A | band - band |
| 08T28MGH | hand - hour hand |
| 08T28MGM | hand - minute hand |
| 08SC16AG | others - second hand |
| EG0060B01 | others - button gasket |
| DB0060B01 | others - crown and stem gasket |
| 0354655 | others - winding stem |
| H557506ASA | others - case |
| 84301384 | others - dial ring |
| A200CS | others - push pin |
| H5571 | others - machine code |
| H557526LXS14 | others - dial |
| H557526LXS18 | others - dial |