The Seiko A904-5090 is a watch model based on the A904 movement.
Parts List
| ES8W28LM01 | crystal |
| EA0090B0A | case back gasket - button gasket |
| FH2882B0A | case back gasket - case back gasket |
| 86573900 | crystal gasket - plastic gasket for crystal |
| 80612949 | pusher - button |
| B1410S | band - metal band |
| A200CS | others - push pin |
| A9041 | others - machine code |
| A90450509999 | others - panel cover |
| A904509061 | others - case |
| 81350480 | others - button spring |
| 83200101 | others - button spring clip |