The Seiko 1F20-5079 is a watch model based on the 1F20 movement.
Parts List
| K01A41J20A | crystal - crystal |
| K01A41J20B | crystal - crystal |
| K01A41J2 | crystal |
| 25M55DA1 | crown |
| 0H1300B01 | case back gasket |
| 0H1300B0 | case back gasket |
| 2003BB | band - metal band |
| LOCAL | band - band |
| 2003BB-LKG | band - link |
| 2003BB-BK4G | clasp - buckle |
| 2CE037L0BDG | others - minute hand |
| 1CE025L0BDG | others - hour hand |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 1F205079FYB | others - case |
| 1F200230XL14 | others - dial |
| 1F200230XZ14 | others - dial |
| 1F205 | others - machine code |
| 1F205079FYA | others - case |
| 82863110 | others - case ring |
| 1F205079 | others - case back |
| DZ0040B01 | others - crown and stem gasket |
Caliber 1F20
