The Seiko 8420-5880 is a watch model based on the 8420 movement.
Parts List
ES6N78SN00 | crystal |
25M10NA1 | crown |
0G1700N01 | case back gasket |
BGA15 | band - leather band |
07R03DGH | others - hour hand |
0354815 | others - winding stem |
82706280 | others - case ring |
84201980XB14 | others - dial |
84201980XS14 | others - dial |
8420588025 | others - case |
A110AS | others - push pin |
07R03DGM | others - minute hand |
DZ0041B01 | others - crown and stem gasket |
Caliber 8420
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_1.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_2.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_3.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_4.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_5.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_6.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_7.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_8.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420A_caliber_en_9.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420B_caliber_en_1.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420B_caliber_en_2.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420B_caliber_en_3.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/8/8420B_caliber_en_4.jpg)