The Seiko 1F21-0K70 is a watch model based on the 1F21 movement.
Parts List
| 190A06SR02 | crystal - crystal |
| 30M82NB1 | crown - crown |
| 0F170NA1S | case back gasket - case back gasket |
| 4920CZ-LK4 | band - link |
| D0T1AZ-LK00 | band - link |
| D0T1CZ-LK00 | band - link |
| D0T1CZ-LK4 | band - link |
| 4920CZ | band - band |
| D0T1AZ | band - band |
| D0T1CZ | band - band |
| 4920CZ-BKF | clasp - buckle |
| D0T1CZ-BK00 | clasp - clasp |
| D0T1CZ-BKF | clasp - clasp |
| 3BA075F1BNG | others - second hand |
| 1BB052A1BNG | others - hour hand |
| 81604259 | others - bracelet fixing pin |
| 82822980 | others - case ring |
| 1F210K70ME | others - case |
| 81190155 | others - bracelet fixing pipe |
| 1F210K70 | others - case back |
| 1F210K70RL | others - case |
| 1F211H80XL14 | others - dial |
| 1F211H80XS14 | others - dial |
| 1F211K90XS14 | others - dial |
| 1F215 | others - machine code |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 2BB075A1BNG | others - minute hand |