The Seiko 6139-6020 is a watch model based on the 6139 movement.
Parts List
| 350T02ANS | crystal - crystal, kunstoff |
| 350T02ANG | crystal - crystal |
| FH2980B01 | case back gasket - case back gasket |
| DJ0160B01 | others - pusher gasket |
Caliber 6139














The Seiko 6139-6020 is a watch model based on the 6139 movement.
| 350T02ANS | crystal - crystal, kunstoff |
| 350T02ANG | crystal - crystal |
| FH2980B01 | case back gasket - case back gasket |
| DJ0160B01 | others - pusher gasket |













