The Seiko 5421-5200 is a watch model based on the 5421 movement.
Parts List
| SA4W22GN00 | crystal - crystal |
| 35MA8NA1 | crown |
| 0A1600N01 | case back gasket |
| 86564300 | crystal gasket - plastic gasket for crystal |
| DL42A | band - band |
| DL41A | band - band |
| 07SC02NG | others - second hand |
| A100BS | others - push pin (for mb) |
| 54210440XG14 | others - dial |
| 54210440XR14 | others - dial |
| 54211 | others - machine code |
| 5421520075 | others - case |
| 82706400 | others - case ring |
| 0354705 | others - winding stem |
| 06T22NGH | others - hour hand |
| 0Z0060B01 | others - crown and stem gasket |
| 06T04NGM | others - minute hand |
Caliber 5421
