The Seiko 1221-5090 is a watch model based on the 1221 movement.
Parts List
ESEN61SN00 | crystal - crystal (sapphire) |
30N59DA6 | crown - crown |
0H1700B01 | case back gasket - bezel gasket |
06P25DGH | hand - hour hand |
06P25DGM | hand - minute hand |
12210170XS14 | others - dial |
122110 | others - machine code |
1221509026A | others - case |
83133230 | others - case ring |
06SC19VG | others - second hand |
0351117 | others - winding stem |
DZ0040B01 | others - crown and stem gasket |
Caliber 1221
![Caliber manual page](https://www.theseikoguy.com/media/movements/1/1221A_caliber_jp_1.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/1/1221A_caliber_jp_2.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/1/1221A_caliber_jp_3.jpg)
![Caliber manual page](https://www.theseikoguy.com/media/movements/1/1221A_caliber_jp_4.jpg)