The Seiko H557-521A is a watch model based on the H557 movement.
Parts List
| SA3W00GN00 | crystal - crystal |
| 40M76NA1 | crown |
| DB0060B01 | others - crown and stem gasket |
| EG0060B01 | others - button gasket |
The Seiko H557-521A is a watch model based on the H557 movement.
| SA3W00GN00 | crystal - crystal |
| 40M76NA1 | crown |
| DB0060B01 | others - crown and stem gasket |
| EG0060B01 | others - button gasket |