The Seiko 4206-0254 is a watch model based on the 4206 movement.
Parts List
| 270W31LN00 | crystal |
| 40MC5NS1 | crown - crown |
| 40MC5NN1 | crown - crown (3h) |
| FH2830B01 | case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
Caliber 4206
Seiko 4206-0254 Watch Guide