The Seiko 7123-8439 is a watch model based on the 7123 movement.
Parts List
| 310T57ANS0 | crystal - crystal |
| 310T57AAG0 | crystal |
| 40M97NS1 | crown |
| 40M97NA1 | crown |
| FH3030B01 | case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| 310T57ANS0 | crystal - crystal |
| 310T57AAG0 | crystal |
| 40M97NS1 | crown |
| 40M97NA1 | crown |
| FH3030B01 | case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
Caliber 7123
