The Seiko 4N21-1160 is a watch model based on the 4N21 movement.
Parts List
| 190A25JN02 | crystal - crystal (inorganic) |
| 6K30A4SNGA | crown - crown |
| 0F175BAA1 | case back gasket |
| AC004BAA1 | case back gasket - crown and stem gasket |
| DAP2BW | band - band |
| 3BA075F1BNG | others - second hand |
| A120BS | others - push pin (for lb) |
| 4N210AA0XG14 | others - dial |
| 0351550 | others - winding stem |
| 82833515 | others - case ring |
| 4N21116075D | others - case |
| 2BA075A1BNG | others - minute hand |
| 1BA050A1BNG | others - hour hand |