The Seiko 4N00-6780 is a watch model based on the 4N00 movement.
Parts List
| K01A15J20A | crystal - crystal |
| 6M30A3NNG0 | crown - crown |
| 0F140BA1S | case back gasket - case back gasket |
| 4479LB | band - band |
| 4479JB | band - band |
| 4479CB | band - band |
| 4479CB-LK6 | band - link |
| 4479JB-LKS | band - link |
| 4479LB-LKG | band - link |
| 4479JB-BK4S | clasp - buckle |
| 4479CB-BKL | clasp - buckle |
| 4479CB-PB1 | clasp - parts for buckle |
| 4479LB-BK4G | clasp - buckle |
| 2CH055A1BAA | others - minute hand |
| 1CH035A1BNG | others - hour hand |
| 2CH050A1BNG | others - minute hand |
| 1CH040A1BNG | others - hour hand |
| 2CH055A1BNG | others - minute hand |
| 1CH040A1BAA | others - hour hand |
| DZ0040B01 | others - crown and stem gasket |
| 4N006780VDC | others - case |
| 4N005121XS14 | others - dial |
| 4N005130XG14 | others - dial |
| 4N005131XG14 | others - dial |
| 4N005131XN14 | others - dial |
| 4N0061 | others - machine code |
| 4479LB-EPG | others - endpiece |
| 4479JB-EPS | others - endpiece |
| 0351155 | others - winding stem |
| 81604259 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 81604279 | others - bracelet fixing pin |
| 82861550 | others - case ring |
| 4N006780VDA | others - case |
| 4N006780 | others - case back |