The Seiko 1F20-6G40 is a watch model based on the 1F20 movement.
Parts List
| ES2A60JZ0C | crystal - crystal |
| ES2A60JZ0B | crystal - crystal |
| 30MF0NA1 | crown |
| 30MF0NS1 | crown |
| 0F170BA1S | case back gasket - case back gasket |
| 48D7KB-LK3 | band - link |
| 48D7BB-LK3 | band - link |
| 48D7JB-LK3 | band - link |
| 48D7BB | band - band |
| 48D7KB | band - band |
| 48D7JB | band - band |
| 48D7AB | band - band |
| 48D7AB-LK3 | band - link |
| 48D7KB-BKL | clasp - buckle |
| 48D7KB-PB2 | clasp - parts for buckle |
| 48D7AB-BKX | clasp - buckle |
| 48D7AB-PB2 | clasp - parts for buckle |
| 48D7JB-BKX | clasp - buckle |
| 48D7JB-PB2 | clasp - parts for buckle |
| 48D7BB-BKL | clasp - buckle |
| 48D7BB-PB2 | clasp - parts for buckle |
| 1CE020L0BDG | others - hour hand |
| 1CE020L0BDS | others - hour hand |
| 2CE027L0BDG | others - minute hand |
| 2CE027L0BDS | others - minute hand |
| 82836540 | others - case ring |
| 1F206G4026Z | others - case |
| 1F206G4026 | others - case |
| 1F206G40 | others - case back |
| 0351807 | others - winding stem |
| 1F202R40XG14 | others - dial |
| 1F202R40XL13 | others - dial |
| 1F202R48XG14 | others - dial |
| 1F202R48XL13 | others - dial |
| 1F205 | others - machine code |
| 48D7AB-EP2 | others - endpiece |
| 1F206G4029Z | others - case |
| 1F206G4029 | others - case |
| 48D7BB-EP2 | others - endpiece |
| 48D7KB-EP2 | others - endpiece |
| 48D7JB-EP2 | others - endpiece |
| B080BS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
