The Seiko V400-5550 is a watch model based on the V400 movement.
Parts List
| RE2A15JN02 | crystal |
| 6M35B7SNW0 | crown - crown |
| 0F190BAA1 | case back gasket - case back gasket |
| 81612695 | band - bracelet fixing pin |
| DK54E | band - leather band |
| V40010 | others - machine code |
| V4001720XB13 | others - dial |
| V4005550 | others - case back |
| V40055507E | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 82862130 | others - case ring |
| 81606511 | others - bracelet fixing pin |
| 81181919 | others - bracelet fixing pipe |
| 0351155 | others - winding stem |
| 07R63NSH | others - hour hand |
| 07R63NSM | others - minute hand |