The Seiko Y520-002A is a watch model based on the Y520 movement.
Parts List
| 115N50LN01 | crystal |
| 25M24NG1 | crown |
| 0H1100B01 | case back gasket - case back gasket |
| KE72A | band - metal band |
| 0351930 | others - winding stem |
| T060AS | others - push pin |
| 04V32DAH | others - hour hand |