The Seiko 4N00-6441 is a watch model based on the 4N00 movement.
Parts List
| ES3A53JN02 | crystal - crystal |
| ES3A53JN | crystal |
| 6M30B9NNG1 | crown - crown |
| 6M30B9NN | crown |
| 0H1500B01 | case back gasket - case back gasket |
| 0H1500B0 | case back gasket |
| 4280LZ | band - band |
| 4280KZ | band - band |
| 4280KZ-LKG | band - link |
| 4280LZ-LKG | band - link |
| 4280LZ-BK4G | clasp - buckle |
| 4280LZ-PB1 | clasp - parts for buckle |
| 4280KZ-BK4G | clasp - buckle |
| 4280KZ-PB1 | clasp - parts for buckle |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 81610199 | others - bracelet fixing pin |
| 4N00644125A | others - case |
| 82871010 | others - case ring |
| 4N006441 | others - case back |
| 4N004301XG14 | others - dial |
| 4N004301XL14 | others - dial |
| 4N004301XS14 | others - dial |
| 4N0061 | others - machine code |
| 0351155 | others - winding stem |
| 2CG055L0BDG | others - minute hand |
| 1CG037L0BDG | others - hour hand |