The Seiko 7A28-7A00 is a watch model based on the 7A28 movement.
Parts List
| 320W21HK01 | crystal |
| 40MV5NG1 | crown - crown |
| 40MV5NH1 | crown - crown |
| 0E020BA11 | case back gasket - gasket |
| FE318BAA1 | case back gasket - case back gasket |
| 86581530 | crystal gasket - plastic gasket for crystal |
| 86581535 | crystal gasket - plastic gasket for crystal |
| 80609190 | pusher - button |
| 80609195 | pusher - button |
| 80609210 | pusher - button (2h) |
| 80609215 | pusher - button (2h) |
| GL50A | band - band |
| GL51A | band - band |
| 0E036BA11 | band - other |
| 85261315 | band - other |
| 85261316 | band - other |
| 12SC10AK | others - sub hand |
| 04E01XW | others - sub hand |
| 12BJ0FEH | others - hour hand |
| 12BJ0FEM | others - minute hand |
| 0354726 | others - winding stem |
| EB0055B0A | others - crown and stem gasket |
| 81350540 | others - button spring |
| EC0060B0A | others - button gasket |
| 83200271 | others - button spring clip |
| 7A287A00YT | others - case |
| 7A287A00YS | others - case |
| A190BS | others - push pin |
| 7A287A00X989 | others - dial |
| 7A287A00X999 | others - dial |
| 7A289 | others - machine code |
| 84308015 | others - dial ring |
| 84308016 | others - dial ring |
| 81402399 | others - button spring clip |
Caliber 7A28
