The Seiko 4N00-1240 is a watch model based on the 4N00 movement.
Parts List
| RE3A47JN02 | crystal - crystal |
| RE3A47JN | crystal |
| 6M30B9NNG1 | crown - crown |
| 30N59NN5 | crown |
| 6M30B9NN | crown |
| 0H1700B01 | case back gasket - bezel gasket |
| 0H1700B0 | case back gasket |
| 43L7KM | band - band |
| 43L7BM | band - band |
| 43L7BM-LKG | band - link |
| 43L7KM-LKG | band - link |
| 43L7KM-BK4G | clasp - buckle |
| 43L7BM-BK4G | clasp - buckle |
| 1CH040A1BNG | others - hour hand |
| 2CH057A1BNG | others - minute hand |
| 2CH057A1BAA | others - minute hand |
| 1CH040A1BAA | others - hour hand |
| 0351155 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 81604779 | others - bracelet fixing pin |
| 4N00124025A | others - case |
| 82860090 | others - case ring |
| 4N001240 | others - case back |
| 4N00124025B | others - case |
| 4N00124025C | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 4N004830XS19 | others - dial |
| 4N004831XS19 | others - dial |
| 4N004841XG14 | others - dial |
| 4N0061 | others - machine code |