The Seiko Y580-5640 is a watch model based on the Y580 movement.
Parts List
| REAN58LN01 | crystal |
| 30E02NF1 | crown |
| 0G1701B01 | case back gasket |
| 884LC | band - leather band |
| 876LC | band - leather band |
| 878LC | band - leather band |
| 880LC | band - leather band |
| 05R13NGH | hand - hour hand |
| 05R13NGM | hand - minute hand |
| 82725000 | others - case ring |
| 0354902 | others - setting/winding stem |
| A100AS | others - push pin |
| Y5800 | others - machine code |
| Y5801258XS19 | others - dial |
| Y5801268X994 | others - dial |
| Y5801268XG14 | others - dial |
| Y5801268XN14 | others - dial |
| Y58056402S | others - case |