The Seiko 5A54-521A is a watch model based on the 5A54 movement.
Parts List
| SA0A14SV0D | crystal |
| 25MA8NA6 | crown |
| 0A2500N01 | case back gasket - rotating bezel gasket |
| B1848 | band - metal band |
| 08V20DGM | others - minute hand |
| 0354882 | others - winding stem |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 5A540590XN14 | others - dial |
| 5A54521A | others - case back |
| 5A54521ASA | others - case |
| 5A548 | others - machine code |
| 82833120 | others - case ring |
| EZ0035B01 | others - crown and stem gasket |
| 09V02AJH | others - hour hand |