The Seiko Y100-5309 is a watch model based on the Y100 movement.
Parts List
| SA9N40AN00 | crystal |
| 0G0055B | case back gasket |
| 0A2400B0A | case back gasket |
The Seiko Y100-5309 is a watch model based on the Y100 movement.
| SA9N40AN00 | crystal |
| 0G0055B | case back gasket |
| 0A2400B0A | case back gasket |