The Seiko 5A54-0270 is a watch model based on the 5A54 movement.
Parts List
| 260WB2SV01 | crystal |
| 25MB4NA4 | crown |
| 0F250NA1S | case back gasket |
| AB02C | band - metal band |
| 81181129 | band - bracelet fixing pipe |
| 82834240 | others - case ring |
| 87020682 | others - back plate |
| 81180229 | others - bracelet fixing pipe |
| 81610749 | others - bracelet fixing pin |
| 5A540270 | others - case back |
| 5A540270XB | others - case |
| 5A540620XL14 | others - dial |
| 5A548 | others - machine code |
| 11V42CAH | others - hour hand |
| 0354882 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 11V42CAM | others - minute hand |