The Seiko 4206-557J is a watch model based on the 4206 movement.
Parts List
| SA4W97LM02 | crystal |
| 40MF5NS1 | crown |
| FH2030B04 | case back gasket |
| FH2030B01 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| 86583130 | crystal gasket - plastic gasket for crystal |
| Z5239J | band - metal band |
| 06C21LKH | hand - hour hand |
| 06C21LKM | hand - minute hand |
| 06C21LSH | hand - hour hand |
| 06C21LSM | hand - minute hand |
| 3BA075F1BNS | others - second hand |
| 06SC15NS | others - second hand |
| A120BS | others - push pin (for lb) |
| 0351420 | others - winding stem |
| 83137810 | others - case ring |
| 0801274 | others - date dial |
| 0884422 | others - holding ring for dial |
| 4206148LXS17 | others - dial |
| 4206557J61 | others - case |
Caliber 4206
