The Seiko 1F20-5G5H is a watch model based on the 1F20 movement.
Parts List
| K04N32JN01 | crystal |
| K04N32JN | crystal |
| 25M04NK1 | crown |
| 0H1300N01 | case back gasket |
| 0H1300N0 | case back gasket |
| Z5391H | band |
| Z5391H-BK4G | clasp - clasp |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 1F201E90XS14 | others - dial |
| 1F205G5H | others - case back |
| 1F205G5H2N | others - case |
| 1F209 | others - machine code |
| 82822320 | others - case ring |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 04Y12DAM | others - minute hand |
| 04Y12DAH | others - hour hand |
Caliber 1F20
