The Seiko 4N00-6840 is a watch model based on the 4N00 movement.
Parts List
| BA2A57J20A | crystal - crystal |
| 6M30Z3NNGA | crown - crown |
| 0F160BA1S | case back gasket - case back gasket |
| 4487LG | band - band |
| 4488LG | band - band |
| 4487LG-LKG | band - link |
| 4488LG-LKG | band - link |
| 4488LG-BK2S | clasp - buckle |
| 4488LG-PB1 | clasp - parts for buckle |
| 4487LG-BK2S | clasp - buckle |
| 4487LG-PB1 | clasp - parts for buckle |
| 1CH040A1BNG | others - hour hand |
| 2CH060A1BNG | others - minute hand |
| 2CB060A1BNG | others - minute hand |
| 1CB040A1BNG | others - hour hand |
| 4N00684079B | others - case |
| 0351155 | others - winding stem |
| 81190075 | others - bracelet fixing pipe |
| 82836150 | others - case ring |
| 81604029 | others - bracelet fixing pin |
| 4N00684079A | others - case |
| 4N006840 | others - case back |
| DZ0040B01 | others - crown and stem gasket |
| 4N005181XN14 | others - dial |
| 4N005191XS19 | others - dial |
| 4N0061 | others - machine code |