The Seiko 6431-5139 is a watch model based on the 6431 movement.
Parts List
| ES3W48GN00 | crystal |
| 35M82NA1 | crown - crown |
| 0A2700N | case back gasket - dichtung -boden |
Caliber 6431
Seiko 6431-5139 Watch Guide
The Seiko 6431-5139 is a watch model based on the 6431 movement.
| ES3W48GN00 | crystal |
| 35M82NA1 | crown - crown |
| 0A2700N | case back gasket - dichtung -boden |