The Seiko 5A70-5139 is a watch model based on the 5A70 movement.
Parts List
| BA1N46SN00 | crystal |
| 25M02NE3 | crown - crown |
| 0H1720N01 | case back gasket - case back gasket |
| 04V28CGM | hand - minute hand |
| 5A700220XG14 | others - dial |
| 5A701 | others - machine code |
| 5A7051394K | others - case |
| 82724580 | others - case ring |
| 0354881 | others - winding stem |
| 81501405 | others - case back screw |
| 04V28CGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |