The Seiko 3421-0110 is a watch model based on the 3421 movement.
Parts List
| 190W04GN00 | crystal - crystal |
| 30M22NS1 | crown - crown |
| 0H1860N01 | case back gasket - case back gasket |
| 86178941 | crystal gasket - plastic gasket for crystal |
| 86178940 | crystal gasket - plastic gasket for crystal |
| ZS05A | band - band |
| 08T02AKH | others - hour hand |
| 08T02AKM | others - minute hand |
| A100BS | others - push pin (for mb) |
| 34210560XL1L | others - dial |
| 34210560XS17 | others - dial |
| 34211 | others - machine code |
| 0354546 | others - winding stem |
| 83118650 | others - case ring |
| 342101107E | others - case |
| 342101107EA | others - case |
| 08SC14NS | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 08T02ASH | others - hour hand |
| 08T02ASM | others - minute hand |
Caliber 3421
