The Seiko Y558-5099 is a watch model based on the Y558 movement.
Parts List
| SA6N54AN00 | crystal |
| 35M60NS1/NF1 | crown |
| DA0070B01 | case back gasket - crown and stem gasket |
| 0A2600B | case back gasket |
Other models with the same movement
| Y558-5000 |
| Y558-5009 |
| Y558-5019 |
| Y558-5029 |
| Y558-5039 |
| Y558-5049 |
| Y558-5059 |
| Y558-5069 |
| Y558-5079 |
| Y558-5089 |
| Y558-6009 |
| Y558-8009 |
| Y558-8019 |