The Seiko 1F20-5J60 is a watch model based on the 1F20 movement.
Parts List
| ESLN40JR01 | crystal |
| ESLN40JR02 | crystal |
| 30M62NA4 | crown |
| 30M62NS5 | crown |
| 0H2100B01 | case back gasket |
| HK55C | band - leather band |
| HK56C | band - leather band |
| 2CX052S0BCC | hand - minute hand |
| 82824400 | others - case ring |
| A100AS | others - push pin |
| 1F201K40XG1Z | others - dial |
| 1F201K40XS1Z | others - dial |
| 1F205 | others - machine code |
| 1F205J60 | others - case back |
| 1F205J6026 | others - case |
| 1F205J602E | others - case |
| 0351807 | others - winding stem |
| 1CX037S0BCA | others - hour hand |
| 1CX037S0BCC | others - hour hand |
| 2CX052S0BCA | others - minute hand |
Caliber 1F20
