The Seiko Y643-502A is a watch model based on the Y643 movement.
Parts List
| ES3W27LN00 | crystal |
| 40M97NS1 | crown |
| 0A1900B01 | case back gasket - gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
The Seiko Y643-502A is a watch model based on the Y643 movement.
| ES3W27LN00 | crystal |
| 40M97NS1 | crown |
| 0A1900B01 | case back gasket - gasket |
| DB0055B01 | case back gasket - crown and stem gasket |