The Seiko 4N21-1170 is a watch model based on the 4N21 movement.
Parts List
| 190A02SN02 | crystal - crystal (sapphire) |
| 6K30A1SNG0 | crown |
| 0F175BAA1 | case back gasket |
| AC004BAA1 | case back gasket - crown and stem gasket |
| DAP2BW | band - band |
| 1BA050L0BCF | others - hour hand |
| 2BA075L0BCF | others - minute hand |
| 3BA075F0BNG | others - second hand |
| 3BA075F1BNG | others - second hand |
| A120BS | others - push pin (for lb) |
| 4N212730XG14 | others - dial |
| 4N212910XG19 | others - dial |
| 4N216 | others - machine code |
| 4N2165 | others - machine code |
| 82833515 | others - case ring |
| 4N21117075A | others - case |
| 4N211170 | others - case back |
| 4N21117075B | others - case |
| 4N21117075C | others - case |
| 1BA050A1BAA | others - hour hand |
| 0351155 | others - winding stem |
| 2BA075A1BAA | others - minute hand |