The Seiko 9021-504A is a watch model based on the 9021 movement.
Parts List
| ES8N44GM02 | crystal - crystal |
| 30R22NA1 | crown |
| 30R22NS1 | crown - crown |
| 0H2600N01 | case back gasket - case back gasket |
| GL20A | band - band |
| 9021504A11 | others - case |
| 90215050XN14 | others - dial |
| 90219 | others - machine code |
| A180BS | others - push pin |
| 0354856 | others - winding stem |
| 82711800 | others - case ring |
| 13SC04A2 | others - second hand |
| 08T32DGM | others - minute hand |
| 08T32DGH | others - hour hand |
Caliber 9021
