The Seiko 7321-5440 is a watch model based on the 7321 movement.
Parts List
| SABN44GN00 | crystal |
| 30M68NA1 | crown - crown |
| 0H1610N01 | case back gasket |
| DZ41A | band - metal band |
| DZ42A | band - metal band |
| 07SC02NG | others - second hand |
| 05T02N1M | others - minute hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 0354735 | others - winding stem |
| 82713260 | others - case ring |
| 73210870XG14 | others - dial |
| 73210870XS14 | others - dial |
| 7321544025 | others - case |
| 732154402E | others - case |
| 73219 | others - machine code |
| 05T06N1H | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |