The Seiko 1F20-0BH0 is a watch model based on the 1F20 movement.
Parts List
| K03A18SC0A | crystal - crystal (sapphire) |
| 6M30Z4STWA | crown - crown |
| 0F160BA1S | case back gasket - case back gasket |
| D237EQ | band - band |
| D237EQ-LK00 | band - link |
| 2CE052L0BDG | others - minute hand |
| 1CE037LABDG | others - hour hand |
| DB004BAD1 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82844740 | others - case ring |
| 1F200BH001A | others - case |
| 0351807 | others - winding stem |
| D237EQ-LKPN | others - pin for link |
| 1F200BH0 | others - case back |
| 1F200BR0XA25 | others - dial |
| 1F203 | others - machine code |
| D237EQ-BKPN | others - pin for buckle/clasp |
Caliber 1F20
