The Seiko Y101-5590 is a watch model based on the Y101 movement.
Parts List
| ESDN88LM01 | crystal |
| 35MP8NG1 | crown |
| 0H2395N01 | case back gasket |
| JK70B | band - leather band |
| 0354765 | others - winding stem |
| A160BS | others - push pin |
| 10CP6NBM | others - minute hand |
| 10CP6NBH | others - hour hand |