The Seiko 1F21-0J70 is a watch model based on the 1F21 movement.
Parts List
| 200W22SN02 | crystal - crystal |
| 6K30A0SNG1 | crown |
| 0F190NA1S | case back gasket - case back gasket |
| 0F190BA1S | case back gasket - case back gasket |
| WN87BW | band - band |
| DAB9BW | band - band |
| 3BA090F1BNG | others - second hand |
| 1BA055A1BAA | others - hour hand |
| 2BA080A1BAA | others - minute hand |
| A130AS | others - push pin (for lb) |
| 1F211D40XS14 | others - dial |
| 1F215 | others - machine code |
| 82835280 | others - case ring |
| 0351807 | others - winding stem |
| 1F210J7075 | others - case |
| 1F210J70 | others - case back |
| 1F210J7075B | others - case |
| 1F210J7075C | others - case |
| 1F210J7075E | others - case |
| 1F210J7075F | others - case |
| 1F210J7075M | others - case |
| EZ0035B01 | others - crown and stem gasket |