The Seiko 5A54-0280 is a watch model based on the 5A54 movement.
Parts List
| 260WB2SK01 | crystal |
| 25MB4NA4 | crown |
| 0F250NA1S | case back gasket |
| 81604401 | band - bracelet fixing pin |
| LK23G | band - leather band |
| 82834240 | others - case ring |
| 87020682 | others - back plate |
| 10V42NLH | others - hour hand |
| 0354882 | others - winding stem |
| 5A540280 | others - case back |
| 5A540280SA | others - case |
| 5A540630XS19 | others - dial |
| 5A548 | others - machine code |
| 81503081 | others - screw |
| EZ0035B01 | others - crown and stem gasket |
| 10V42NLM | others - minute hand |