The Seiko 5A50-2020 is a watch model based on the 5A50 movement.
Parts List
| RE4A37SN01 | crystal - crystal |
| 6M25Z1NDGA | crown |
| 6M25Z1SNWA | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| CA45AW | band - band |
| CA47BW | band - band |
| 86209316 | band - other |
| 86209317 | band - other |
| 86209336 | band - other |
| 86209337 | band - other |
| 1CE050LBBXW | others - hour hand |
| 1CE050LBBXX | others - hour hand |
| 2EE080LABHG | others - minute hand |
| 2EE080LABHS | others - minute hand |
| 81604321 | others - bracelet fixing pin |
| 82812020 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0354881 | others - winding stem |
| 5A505070XG14 | others - dial |
| 5A505070XS13 | others - dial |
| 81503021 | others - screw |
| 81503029 | others - screw |
| 5A50202061A | others - case |
| 81604329 | others - bracelet fixing pin |
| 5A502020 | others - case back |
| 5A50202075A | others - case |
Caliber 5A50
