The Seiko 5S21-7A30 is a watch model based on the 5S21 movement.
Parts List
280WB8SV02 | crystal |
35MK4NS2 | crown |
0A2600B01 | case back gasket |
GK53B | band - leather band |
12T08APM | hand - minute hand |
5S217A20XS1Z | others - dial |
5S217A30 | others - case back |
5S217A307E | others - case |
5S219 | others - machine code |
A170BS | others - push pin |
0351683 | others - winding stem |
82803220 | others - case ring |
12T08APH | others - hour hand |
12SC32TL | others - second hand |
Caliber 5S21
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_1.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_2.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_3.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_4.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_5.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_6.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/5/5S21A_caliber_en_7.jpg)