The Seiko 2A22-0280 is a watch model based on the 2A22 movement.
Parts List
| 185W19HN01 | crystal |
| 185P01HN03 | crystal - crystal |
| 32M13NA1 | crown |
| 0F150BAA1 | case back gasket - case back gasket |
| 86572895 | crystal gasket - plastic gasket for crystal |
| 86560210 | bezel gasket - plastic gasket for bezel |
| 89969071 | band - other |
| B5333C | band - metal band |
| B5333C-BK5S | clasp - clasp |
| 07S61CGH | hand - hour hand |
| 07S61CGM | hand - minute hand |
| 07SC43NG | others - second hand |
| 3BA075F1BNG | others - second hand |
| 83138950 | others - case ring |
| A110AS | others - push pin |
| EB0055B01 | others - crown and stem gasket |
| 2A220280XW | others - case |
| 2A220680XN14 | others - dial |
| 2A2210 | others - machine code |
| 82331356 | others - bezel |
Caliber 2A22
