The Seiko Y520-5B80 is a watch model based on the Y520 movement.
Parts List
| RE2A56JC02 | crystal - crystal |
| RE2A56JCL2 | crystal - crystal |
| 35MV4NA1 | crown - crown |
| 35MV4NS1 | crown - crown |
| 0E140NA1S | case back gasket - case back gasket |
| E097AB | band - band |
| E097BB | band - band |
| 03V06NGM | others - minute hand |
| 03V06NSM | others - minute hand |
| 02V02NSH | others - hour hand |
| 02V02NGH | others - hour hand |
| 0351930 | others - winding stem |
| 82738000 | others - case ring |
| Y5205B8075 | others - case |
| Y5205B8079 | others - case |
| T060AS | others - push pin |
| Y5200 | others - machine code |
| Y5200D40XL13 | others - dial |
| Y5200D40XS44 | others - dial |
| EZ0035B01 | others - crown and stem gasket |