The Seiko 1F20-5130 is a watch model based on the 1F20 movement.
Parts List
| SA1A85JN02 | crystal - crystal |
| 6M30B9SNW0 | crown - crown |
| 6M30B9NNG0 | crown - crown |
| 0F130BA1S | case back gasket - case back gasket |
| D0C3AZ | band - band |
| D0C3BZ | band - band |
| 1CX040AABAF | others - hour hand |
| 2CC055A1BAF | others - minute hand |
| 2CC055A1BNS | others - minute hand |
| 1CX040AABNS | others - hour hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351807 | others - winding stem |
| 1F20513075A | others - case |
| 82871490 | others - case ring |
| 1F205130 | others - case back |
| 1F2051307EA | others - case |
| 1F200330XG19 | others - dial |
| 1F200340XS19 | others - dial |
| 1F205 | others - machine code |
| T060AS | others - push pin |
Caliber 1F20
