The Seiko 6431-5120 is a watch model based on the 6431 movement.
Parts List
| SA2W88GN00 | crystal |
| 35M82N | crown |
| 0A2800N | case back gasket |
Caliber 6431
Seiko 6431-5120 Watch Guide
The Seiko 6431-5120 is a watch model based on the 6431 movement.
| SA2W88GN00 | crystal |
| 35M82N | crown |
| 0A2800N | case back gasket |