The Seiko 8221-502A is a watch model based on the 8221 movement.
Parts List
| SA2W60GF01 | crystal |
| SA2W60GM01 | crystal - crystal |
| 45E06NS1 | crown - crown |
| FH2882B0A | case back gasket - case back gasket |
| 86176830 | crystal gasket - plastic gasket for crystal |
| NA07A | band - band |
| 8221502A61 | others - case |
| 0884679 | others - holding ring for dial |
| 82215020X99L | others - dial |
| 83020435 | others - dial ring (upper) |
| 83022835 | others - dial ring (lower) |
| A200CS | others - push pin |
| 0354825 | others - winding stem |
| 10C46AKH | others - hour hand |
| 0A0150B0A | others - crown and stem gasket |
| 13SC04ES | others - second hand |
| 10C46AKM | others - minute hand |
| 89995390 | others - pusher spacer |
Other models with the same movement