The Seiko 5H23-7B90 is a watch model based on the 5H23 movement.
Parts List
280W48GN00 | crystal |
35M82NA1 | crown - crown |
FH2881B01 | case back gasket - case back gasket |
Caliber 5H23
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5H23A_caliber_en_1.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5H23A_caliber_en_2.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5H23A_caliber_en_3.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5H23A_caliber_en_4.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5H23A_caliber_en_5.jpg)
The Seiko 5H23-7B90 is a watch model based on the 5H23 movement.
280W48GN00 | crystal |
35M82NA1 | crown - crown |
FH2881B01 | case back gasket - case back gasket |