The Seiko 5A70-5640 is a watch model based on the 5A70 movement.
Parts List
| SA0A04SN02 | crystal |
| 25M02NS3 | crown |
| 0E190NA1S | case back gasket - case back gasket |
| HB20B | band - metal band |
| 05VC03GM | others - minute hand |
| 05VC03GH | others - hour hand |
| 81180229 | others - bracelet fixing pipe |
| 81610389 | others - bracelet fixing pin |
| DZ0041B01 | others - crown and stem gasket |