The Seiko A557-506A is a watch model based on the A557 movement.
Parts List
| ES2W94GM02 | crystal |
| FH2980B0A | case back gasket - case back gasket |
| EC0060B0A | others - button gasket |
Other models with the same movement
| A557-5000 |
| A557-5010 |
| A557-5020 |
| A557-502A |
| A557-502B |
| A557-5030 |
| A557-503A |
| A557-5050 |
| A557-505A |
| A557-505B |
| A557-5060 |