The Seiko 5A54-520H is a watch model based on the 5A54 movement.
Parts List
| BA3N44SV02 | crystal |
| BA3N44SV | crystal |
| 27M04NA1 | crown |
| 0H2600B01 | case back gasket - case back gasket |
| 0H2600B0 | case back gasket |
| BRJ67G | band |
| 81180229 | others - bracelet fixing pipe |
| 81606511 | others - bracelet fixing pin |
| 5A540500XY14 | others - dial |
| 5A54520H | others - case back |
| 5A54520H26 | others - case |
| 5A549 | others - machine code |
| 82830900 | others - case ring |
| 0354882 | others - winding stem |
| 09V08DGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 09V08DGH | others - hour hand |