The Seiko 4N01-0551 is a watch model based on the 4N01 movement.
Parts List
| 175W19JM | crystal |
| 175W19JM01 | crystal - crystal |
| 6M30A3NNG0 | crown - crown |
| 6M30A3NN | crown |
| 0F150BAA | case back gasket |
| 0F150BAA5 | case back gasket - case back gasket |
| 4130LB | band - band |
| 4130LB-LKG | band - link |
| 4130LB-BK4G | clasp - buckle |
| 2BB072A1BNG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 1BD050A0BAA | others - hour hand |
| 82851170 | others - case ring |
| 4N01055179A | others - case |
| 4N010551 | others - case back |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 4N011041XS14 | others - dial |
| 4N011051XS19 | others - dial |
| 4N0161 | others - machine code |
| T070BS | others - push pin |
| 1BB050A1BNG | others - hour hand |
| 2BD075A0BAA | others - minute hand |