The Seiko 4N21-0610 is a watch model based on the 4N21 movement.
Parts List
| 180A02SV0A | crystal - crystal |
| 6M30B5NNG1 | crown - crown |
| 6M30B5NNG2 | crown - crown |
| 0F150BAA5 | case back gasket - case back gasket |
| 0H1700B01 | case back gasket - bezel gasket |
| RB34A | band - band |
| RB35A | band - band |
| 3BA075F1BNG | others - second hand |
| 2BB070A1BNG | others - minute hand |
| 0351155 | others - winding stem |
| 82841070 | others - case ring |
| 4N21061061 | others - case |
| 82280419 | others - bezel |
| 4N210610 | others - case back |
| 4N210610T2 | others - case |
| 4N211170XS14 | others - dial |
| 4N211180XS14 | others - dial |
| 4N2164 | others - machine code |
| T080AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 1BB050A1BNG | others - hour hand |