The Seiko 8523-0040 is a watch model based on the 8523 movement.
Parts List
| 185T05AAG0 | crystal |
| 40MG3NS1 | crown |
| 40MG3NA1 | crown |
| 0F170BAA2 | case back gasket |
| 185T05AAG0 | crystal |
| 40MG3NS1 | crown |
| 40MG3NA1 | crown |
| 0F170BAA2 | case back gasket |
Caliber 8523
Seiko 8523-0040 Watch Guide