The Seiko 4N21-5350 is a watch model based on the 4N21 movement.
Parts List
| K02A47SN02 | crystal - crystal |
| 6M35D1SNW0 | crown - crown |
| 6M35D1SNG2 | crown - crown |
| 0F150BA1S | case back gasket - case back gasket |
| D0W4DM | band - band |
| D0W4EM | band - band |
| 2BC050A1BNG | others - minute hand |
| 3BA050F1BNG | others - second hand |
| 1BC035A1BNG | others - hour hand |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81190875 | others - bracelet fixing pipe |
| 81607539 | others - bracelet fixing pin |
| 81190155 | others - bracelet fixing pipe |
| 4N21535086A | others - case |
| 82837030 | others - case ring |
| 4N215350 | others - case back |
| 4N21535089A | others - case |
| 4N212290XS14 | others - dial |
| 4N212290XS24 | others - dial |
| 4N2165 | others - machine code |