The Seiko 1F20-0AJ0 is a watch model based on the 1F20 movement.
Parts List
| 120A02JN02 | crystal - crystal |
| 6M30Y9SNGA | crown - crown |
| 6M30Y9SNS0 | crown - crown |
| 0F120BA1S | case back gasket - case back gasket |
| W406BB | band - band |
| W405AB | band - band |
| WAW1AW | band - band |
| WAW2AW | band - band |
| 2CE045S0BDS | others - minute hand |
| 1CA035F0BNG | others - hour hand |
| 1CA035F0BNS | others - hour hand |
| 2CA047F0BNG | others - minute hand |
| 2CA047F0BNS | others - minute hand |
| 1CE037SABDS | others - hour hand |
| A100BS | others - push pin (for mb) |
| 1F200AL0XS13 | others - dial |
| 1F200AL0XS24 | others - dial |
| 1F200BA0XA13 | others - dial |
| 1F200BA0XA23 | others - dial |
| 1F205 | others - machine code |
| 1F215 | others - machine code |
| 82852190 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0351807 | others - winding stem |
| 1F200AJ001A | others - case |
| 1F200AJ002A | others - case |
Caliber 1F20
