The Seiko Y520-0030 is a watch model based on the Y520 movement.
Parts List
| 100N04LN01 | crystal - crystal (inorganic) |
| 25E50NF1 | crown |
| 0H1100B01 | case back gasket - case back gasket |
| 556BA-LKG | band - link |
| 556BA | band - metal band |
| 556BA-BK4G | clasp - clasp |
| 556BA-PB1 | clasp - parts for buckle/clasp |
| Y5200 | others - machine code |
| Y52000302S | others - case |
| Y5200088XG14 | others - dial |
| 03V06NCH | others - hour hand |
| 03V20NGM | others - minute hand |
| 556BA-ES | others - eyelet screw |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 0351930 | others - winding stem |
| 82725880 | others - case ring |