The Seiko 4206-5550 is a watch model based on the 4206 movement.
Parts List
| ESBW19LN01 | crystal |
| 40MF5NS1 | crown |
| 40MF5NN1 | crown |
| FH2030B01 | case back gasket - case back gasket |
| FH2030B04 | case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| 86581790 | crystal gasket - plastic gasket for crystal |
| E5014S | band - metal band |
| 1AG048LABLG | others - hour hand |
| 2AG067LABLG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 07SC17NG | others - second hand |
| 07C03LGM | others - minute hand |
| 07C03LGH | others - hour hand |
| A120BS | others - push pin (for lb) |
| 0801274 | others - date dial |
| 4206140RXB14 | others - dial |
| 4206140RXS14 | others - dial |
| 4206555061 | others - case |
| 83137810 | others - case ring |
Caliber 4206
