The Seiko Y643-0100 is a watch model based on the Y643 movement.
Parts List
| 180W07LN00 | crystal |
| 180P01LN | crystal |
| 40M97NN1 | crown |
| 40M97ND1 | crown |
| FH2030B01 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
The Seiko Y643-0100 is a watch model based on the Y643 movement.
| 180W07LN00 | crystal |
| 180P01LN | crystal |
| 40M97NN1 | crown |
| 40M97ND1 | crown |
| FH2030B01 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |