The Seiko A904-5020 is a watch model based on the A904 movement.
Parts List
| ES8W10LN01 | crystal |
| 86560320 | case back gasket - plastic gasket for case back |
| EG0115B01 | case back gasket - button gasket |
| 86573460 | crystal gasket - plastic gasket for crystal |
| 80601483 | pusher |
| B1095S | band - metal band |
| B1095S-LKS | band - link |
| B1095S-PB1 | clasp - parts for buckle/clasp |
| B1095S-BK1S | clasp - clasp |
| A200BS | others - push pin |
| A9041 | others - machine code |
| A90450109999 | others - panel cover |
| A904501B9979 | others - panel cover |
| A90450206B | others - case |
| A90450206BB | others - case |