The Seiko 4N00-5020 is a watch model based on the 4N00 movement.
Parts List
| ESFW25JM01 | crystal |
| ESFW25JM | crystal |
| 32M63NN1 | crown - crown |
| 32M63NA1 | crown |
| 0F130BAA3 | case back gasket - case back gasket |
| DZ0040B0 | case back gasket |
| Z5353C-LKG | band - link |
| Z5353S-LKS | band - link |
| Z5362C | band - metal band |
| Z5362C-LKG | band - link |
| Z5353C | band |
| Z5353S | band |
| Z5362C-BK7G | clasp - clasp |
| Z5353S-BK4S | clasp - clasp |
| Z5353C-BK4G | clasp - clasp |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 81606679 | others - bracelet fixing pin |
| 4N000030XS14 | others - dial |
| 4N000080XG24 | others - dial |
| 4N000080XS14 | others - dial |
| 4N005020 | others - case back |
| 4N0050207E | others - case |
| 4N0061 | others - machine code |
| 82833970 | others - case ring |
| 04Y11DGH | others - hour hand |
| 04Y11DGM | others - minute hand |
| 1CG030L0BDG | others - hour hand |
| 04Y03NGM | others - minute hand |
| 04Y03NGH | others - hour hand |
| 2CG045L0BDG | others - minute hand |