The Seiko 1F21-0G70 is a watch model based on the 1F21 movement.
Parts List
| 180P04SN02 | crystal |
| 35M1SNA4 | crown |
| 0A1800N0A | case back gasket |
| 86570780 | crystal gasket |
| WB03A | band - metal band |
| 89912403 | band - link |
| 81934363 | clasp - clasp |
| 3BA075F0BNG | others - second hand |
| A120BS | others - push pin (for lb) |
| 1F210G70 | others - case back |
| 1F210G706Y | others - case |
| 1F210K90XS14 | others - dial |
| 1F215 | others - machine code |
| 84323363 | others - dial ring |
| 0351807 | others - winding stem |
| 1BH045L0BDG | others - hour hand |
| 89912489 | others - pin |
| 82820520 | others - case ring |
| 2BH065L0BDG | others - minute hand |
| EA0040B0A | others - crown and stem gasket |