The Seiko 3421-5000 is a watch model based on the 3421 movement.
Parts List
| SA3N10GN00 | crystal - crystal |
| 30M08NA1 | crown - crown |
| 30M08NS1 | crown - crown ersatz |
| 0A1800N01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| EV472 | band - band |
| EV462 | band - band |
| EV481 | band - band |
| 08SC14NG | others - second hand |
| 07T04DGH | others - hour hand |
| 07T04DGM | others - minute hand |
| 07T04DSH | others - hour hand |
| 07T04DSM | others - minute hand |
| A100BS | others - push pin (for mb) |
| 3421007018E4 | others - dial |
| 342100709983 | others - dial |
| 342100709994 | others - dial |
| 34211 | others - machine code |
| 342150002E | others - case |
| 3421500025 | others - case |
| 83118740 | others - case ring |
| 0354546 | others - winding stem |
| 08SC14NS | others - second hand |
Caliber 3421
