The Seiko 3421-0030 is a watch model based on the 3421 movement.
Parts List
| 200W16GN00 | crystal - crystal |
| 35M78NS1 | crown - crown |
| FH2081B0A | case back gasket - case back gasket |
| 86179091 | crystal gasket |
| 86179090 | crystal gasket - plastic gasket for crystal |
| 86178140 | bezel gasket - plastic gasket for bezel |
| DA02A | band - band |
| 08T06AKH | others - hour hand |
| 08T06AKM | others - minute hand |
| 08T06ASH | others - hour hand |
| 08T06ASM | others - minute hand |
| 08T16MKH | others - hour hand |
| 08T16MKM | others - minute hand |
| 08T16MSH | others - hour hand |
| 08T16MSM | others - minute hand |
| A120BS | others - push pin (for lb) |
| 342100801147 | others - dial |
| 342100801U1L | others - dial |
| 3421032L031L | others - dial |
| 3421032L31N7 | others - dial |
| 34211 | others - machine code |
| 0354546 | others - winding stem |
| 3421003061A | others - case |
| 83348869 | others - bezel |
| 83118650 | others - case ring |
| 3421003061B | others - case |
| 08SC14NS | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 3421
