The Seiko Y520-5100 is a watch model based on the Y520 movement.
Parts List
| SA2A91LN02 | crystal - crystal |
| 6M35B1SNW0 | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| W160AZ | band - band |
| 2EA047A3BNS | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 0351930 | others - winding stem |
| 81606239 | others - bracelet fixing pin |
| Y52051007EA | others - case |
| 82838710 | others - case ring |
| Y5205100 | others - case back |
| 05V08NAH | others - hour hand |