The Seiko 1F20-5C00 is a watch model based on the 1F20 movement.
Parts List
| RECN28JN01 | crystal |
| RECN28JN | crystal |
| 30M98NA1 | crown |
| 0H1500B01 | case back gasket - case back gasket |
| 0H1500B0 | case back gasket |
| M5100G | band |
| M5079G | band - metal band |
| M5079G-BK3G | clasp - clasp |
| M5100G-BK3G | clasp - clasp |
| T060BS | others - push pin |
| 1F200D70X929 | others - dial |
| 1F200E50XB14 | others - dial |
| 1F200E50XG14 | others - dial |
| 1F200E50XG24 | others - dial |
| 1F200E50XN14 | others - dial |
| 1F200G00XS29 | others - dial |
| 1F205C00 | others - case back |
| 1F205C0025 | others - case |
| 1F209 | others - machine code |
| 82812900 | others - case ring |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 03Y04NGM | others - minute hand |
| 03Y06DGM | others - minute hand |
| 03Y06DGH | others - hour hand |
| 03Y10AGH | others - hour hand |
| 03Y04FGM | others - minute hand |
| 03Y02NGH | others - hour hand |
Caliber 1F20
