The Seiko 1F20-0BM0 is a watch model based on the 1F20 movement.
Parts List
| SA2A52SB0A | crystal - crystal (sapphire) |
| 6M30Z4STWA | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| D278CB | band - band |
| D278AB | band - band |
| D278AB-LK00 | band - link |
| D278CB-LK00 | band - link |
| D278CB-BK00 | clasp - clasp |
| D278AB-BK00 | clasp - clasp |
| 1CE040L0BCH | others - hour hand |
| 2CE055L0BCH | others - minute hand |
| 1CE040L0BDS | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81190875 | others - bracelet fixing pipe |
| DB004BAD1 | others - crown and stem gasket |
| 1F200BM001A | others - case |
| 82845040 | others - case ring |
| 1F200BM0 | others - case back |
| 1F200BZ0XN15 | others - dial |
| 1F200BZ0XS15 | others - dial |
| 1F205 | others - machine code |
| D278AB-BKPN | others - pin for buckle/clasp |
| D278AB-BKPP | others - spring bar for buckle/clasp |
| D278AB-LKPN | others - pin for link |
| D278CB-BKPN | others - pin for buckle/clasp |
| D278CB-BKPP | others - spring bar for buckle/clasp |
| D278CB-LKPN | others - pin for link |
| 0351807 | others - winding stem |
| 2CE055L0BDS | others - minute hand |
Caliber 1F20
