The Seiko 5A70-2A20 is a watch model based on the 5A70 movement.
Parts List
| 180A02SN01 | crystal - crystal |
| 6M25A0KTWA | crown - crown |
| 0F170NA1S | case back gasket - case back gasket |
| HI170 | band - band |
| 5A702A206E | others - case |
| 82361586 | others - decorative bezel |
| 82821020 | others - case ring |
| 81603066 | others - bracelet fixing pin |
| 81501646 | others - case back screw |
| 0354881 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 07V08DSH | others - hour hand |
| 07V08DSM | others - minute hand |