The Seiko 5A70-0640 is a watch model based on the 5A70 movement.
Parts List
| 190N22SN00 | crystal |
| 25M02NE3 | crown - crown |
| 0E180NA1S | case back gasket - case back gasket |
| MK47P | band - leather band |
| A120AS | others - push pin |
| 08V10DGH | others - hour hand |
| 08V10DGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |