The Seiko Y591-0050 is a watch model based on the Y591 movement.
Parts List
| 180W50GN00 | crystal |
| 35MA6NS1 | crown |
| 35MA6NF1 | crown |
| 86569400 | case back gasket |
| 86569380 | crystal gasket |
| DL88D | band - band |
| DL87D | band - leather band |
| 07T04NSH | others - hour hand |
| 07T04NSM | others - minute hand |
| 07SC02NG | others - second hand |
| 07SC02NS | others - second hand |
| A130AS | others - push pin (for lb) |
| 0354705 | others - winding stem |
| EZ0058B01 | others - crown and stem gasket |
| 07T04NGM | others - minute hand |
| 07T04NGH | others - hour hand |