The Seiko 6139-6031 is a watch model based on the 6139 movement.
Parts List
| 50M04N | crown |
| DJ0160B | case back gasket |
| EC3260B | others |
Caliber 6139
Seiko 6139-6031 Watch Guide
The Seiko 6139-6031 is a watch model based on the 6139 movement.
| 50M04N | crown |
| DJ0160B | case back gasket |
| EC3260B | others |