The Seiko 1F20-5A49 is a watch model based on the 1F20 movement.
Parts List
| K03N42JN01 | crystal |
| K03N42JN | crystal |
| 30M98NA1 | crown |
| 0H1300N01 | case back gasket |
| 0H1300N0 | case back gasket |
| B5514C-LKG | band - link |
| B5514G-LKG | band - link |
| B5514G | band |
| B5514C | band |
| B5514C-BK4S | clasp - clasp |
| B5514G-BK4G | clasp - clasp |
| 0351807 | others - winding stem |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 1F200A70XS14 | others - dial |
| 1F200A80XG14 | others - dial |
| 1F205A49 | others - case back |
| 1F205A4925 | others - case |
| 1F209 | others - machine code |
| 82813040 | others - case ring |
| 2CF040A0BNG | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 04Y10NGM | others - minute hand |
| 1CF027A0BNG | others - hour hand |
| 04Y10NGH | others - hour hand |
Caliber 1F20
