The Seiko 1F20-0F50 is a watch model based on the 1F20 movement.
Parts List
| 170N02GN00 | crystal |
| 170N02GN | crystal |
| 30M98NA1 | crown |
| 0H1610B01 | case back gasket |
| 0H1610B0 | case back gasket |
| Q5044C | band - metal band |
| Q5044C-LKG | band - link |
| Q5044G-LKG | band - link |
| Q5044G | band |
| Q5044G-BK4G | clasp - clasp |
| Q5044C-BK4G | clasp - clasp |
| Q5044C-EPG | others - endpiece |
| 0351807 | others - winding stem |
| Q5044G-EPG | others - endpiece |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 1F200F50 | others - case back |
| 1F200F50CH | others - case |
| 1F201H10X919 | others - dial |
| 1F201H20XS14 | others - dial |
| 1F201H30XB14 | others - dial |
| 1F201H30XG14 | others - dial |
| 1F201K30XB15 | others - dial |
| 1F201K30XG15 | others - dial |
| 1F201K30XS15 | others - dial |
| 1F205 | others - machine code |
| 82814380 | others - case ring |
| 2CC067A0BNG | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 2CE055L0BDG | others - minute hand |
| 05Y10DGM | others - minute hand |
| 2CH070A0BNG | others - minute hand |
| 2CB070A0BNG | others - minute hand |
| 07Y38NGM | others - minute hand |
| 1CC045A0BNG | others - hour hand |
| 1CH050A0BNG | others - hour hand |
| 1CB045A0BNG | others - hour hand |
| 1CE040L0BDG | others - hour hand |
| 07Y38NGH | others - hour hand |
| 06Y51DGH | others - hour hand |
Caliber 1F20
