The Seiko G139-4A0A is a watch model based on the G139 movement.
Parts List
| 280P08HB0B | crystal |
| 280P08HB | crystal |
| 86578445 | crystal gasket |
| 0Z2900B01 | bezel gasket - dichtung |
| EC0060B01 | pusher - pusher gasket |
| 8060604E | pusher |
| 80618029 | pusher |
| 8060612C | pusher |
| 80617589 | pusher - button(10h) |
| ERA07Y | band |
| 81503349 | others - case back screw |
| G1390 | others - machine code |
| G1394A0A | others - case back |
| G1394A0AN2 | others - case |
| T200BS | others - push pin |
| 81350460 | others - button spring |
| 81400669 | others - button spring clip |
Other models with the same movement