The Seiko 1F20-0A30 is a watch model based on the 1F20 movement.
Parts List
| 155N50JN01 | crystal |
| 155N50JN | crystal |
| 30M98NA1 | crown |
| 0H1610B01 | case back gasket |
| 0H1610B0 | case back gasket |
| B5529C | band |
| B5529C-LKG | band - link |
| B5529G-LKG | band - link |
| B5529G | band |
| B5529G-BK4G | clasp - clasp |
| B5529C-BK4S | clasp - clasp |
| 0351807 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 1F200A30 | others - case back |
| 1F200A3025 | others - case |
| 1F200A302L | others - case |
| 1F200D00XG14 | others - dial |
| 1F200D10XS14 | others - dial |
| 1F200D20XS14 | others - dial |
| 1F209 | others - machine code |
| 82814380 | others - case ring |
| 06Y12NGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 2CA065A0BNG | others - minute hand |
| 06Y14NGM | others - minute hand |
| 06Y12NGH | others - hour hand |
| 06Y14NGH | others - hour hand |
Caliber 1F20
