The Seiko 8523-5010 is a watch model based on the 8523 movement.
Parts List
| RE0W37LE10 | crystal |
| RE0W37LE40 | crystal |
| 40MG3NS1 | crown |
| 40MG3NA1 | crown |
| 0G165BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |
Caliber 8523
Seiko 8523-5010 Watch Guide